From 8901ac210e5857b0a957f1bcee9906e0fb8fa707 Mon Sep 17 00:00:00 2001
From: Benjamin Kosnik <bkoz@gcc.gnu.org>
Date: Wed, 9 Aug 2000 07:33:39 +0000
Subject: [PATCH] [multiple changes]

2000-08-09  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

	Preliminary wchar_t implementation, with trivial encodings.
	* docs/configopts.html: Add bits about canonical configure option
	checking.

	* testsuite/27_io/iostream_objects.cc: Replace this file (which
	has newly-declared-illegal mixing of wide/narrow stdstreams) with...
	* testsuite/27_io/narrow_stream_objects.cc: New file.
	* testsuite/27_io/wide_stream_objects.cc: New file.

	* bits/fstream.tcc (underflow): Temporarily hack a solution
	together that writes from the external file to the internal
	buffers. This removes codecvt from the loop, and is incorrect.
	(_M_really_overflow): Same here.

	* testsuite/21_strings/inserters_extractors.cc (test05): Tweaks.

2000-08-08  Benjamin Kosnik  <bkoz@cygnus.com>
	    Ulrich Drepper  <drepper@cygnus.com>

	* config/c_io_libio.h: Tweak.
	* config/c_io_libio_codecvt.c: New file.
	* libio/Makefile.am: Add c_codecvt.c.
	* libio/Makefile.in: Regenerate.
	* libio/genops.c (_IO_unbuffer_write): Don't call _IO_SETBUF if the
	stream is not orientated.

	* acinclude.m4: Add config/c_io_libio_codecvt.c dummy file, until
	encoding gets fleshed out.

	* bits/basic_file.h: Add specialization declarations.
	* config/c_io_libio.cc: Add specializations for pbackfail, uflow.

	* config/c_io_libio.h: Add __c_wfile_type.
	* bits/basic_file.h: Add _M_wfile.

	* config/c_io_libio.cc (__basic_file<char>): Initialize the
	streams without setting the orientation of the underlying FILE to
	either wide or narrow.
	(__basic_file<wchar_t>)): Enable tricky wchar_t io bits.

From-SVN: r35584
---
 libstdc++-v3/ChangeLog                        |   42 +
 libstdc++-v3/acinclude.m4                     |    6 +
 libstdc++-v3/aclocal.m4                       |    6 +
 libstdc++-v3/bits/basic_file.h                |  100 +-
 libstdc++-v3/bits/fstream.tcc                 |   47 +-
 libstdc++-v3/config/c_io_libio.cc             |   95 +-
 libstdc++-v3/config/c_io_libio.h              |    5 +-
 libstdc++-v3/configure                        | 1846 +++++++++--------
 libstdc++-v3/docs/configopts.html             |    9 +-
 libstdc++-v3/libio/ChangeLog                  |   15 +-
 libstdc++-v3/libio/Makefile.am                |    6 +-
 libstdc++-v3/libio/Makefile.in                |   20 +-
 libstdc++-v3/libio/genops.c                   |    4 +-
 libstdc++-v3/libio/iofwide.c                  |   20 +-
 .../21_strings/inserters_extractors.cc        |    2 +-
 .../testsuite/27_io/ostream_inserter_other.cc |    2 +-
 16 files changed, 1238 insertions(+), 987 deletions(-)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index df0e50a5070..dd8ed7eabd5 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,45 @@
+2000-08-09  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>
+
+	Preliminary wchar_t implementation, with trivial encodings.
+	* docs/configopts.html: Add bits about canonical configure option
+	checking.
+
+	* testsuite/27_io/iostream_objects.cc: Replace this file (which
+	has newly-declared-illegal mixing of wide/narrow stdstreams) with...
+	* testsuite/27_io/narrow_stream_objects.cc: New file.
+	* testsuite/27_io/wide_stream_objects.cc: New file.
+
+	* bits/fstream.tcc (underflow): Temporarily hack a solution
+	together that writes from the external file to the internal
+	buffers. This removes codecvt from the loop, and is incorrect.
+	(_M_really_overflow): Same here.
+
+	* testsuite/21_strings/inserters_extractors.cc (test05): Tweaks.
+	
+2000-08-08  Benjamin Kosnik  <bkoz@cygnus.com>
+	    Ulrich Drepper  <drepper@cygnus.com>
+
+	* config/c_io_libio.h: Tweak.
+	* config/c_io_libio_codecvt.c: New file.
+	* libio/Makefile.am: Add c_codecvt.c.
+	* libio/Makefile.in: Regenerate.
+	* libio/genops.c (_IO_unbuffer_write): Don't call _IO_SETBUF if the
+	stream is not orientated.
+
+	* acinclude.m4: Add config/c_io_libio_codecvt.c dummy file, until
+	encoding gets fleshed out.
+
+	* bits/basic_file.h: Add specialization declarations.
+	* config/c_io_libio.cc: Add specializations for pbackfail, uflow.
+
+	* config/c_io_libio.h: Add __c_wfile_type.
+	* bits/basic_file.h: Add _M_wfile.
+
+	* config/c_io_libio.cc (__basic_file<char>): Initialize the
+	streams without setting the orientation of the underlying FILE to
+	either wide or narrow.
+	(__basic_file<wchar_t>)): Enable tricky wchar_t io bits.
+
 2000-08-07  Felix Natter  <fnatter@gmx.net>
 
 	* docs/17_intro/porting-howto.html:  New version.
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 54edb75dd31..915b83cd03f 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -1268,6 +1268,12 @@ AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
   esac
   AC_LINK_FILES($CSTDIO_H, bits/c++io.h)
   AC_LINK_FILES($CSTDIO_CC, src/c++io.cc)
+
+  # 2000-08-04 bkoz hack
+  CCODECVT_C=config/c_io_libio_codecvt.c
+  AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c)
+  # 2000-08-04 bkoz hack
+	
   AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
   AM_CONDITIONAL(GLIBCPP_NEED_XTRA_LIBIO, test "$need_xtra_libio" = yes)
   AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
diff --git a/libstdc++-v3/aclocal.m4 b/libstdc++-v3/aclocal.m4
index c576511f4f5..0c0281e77a4 100644
--- a/libstdc++-v3/aclocal.m4
+++ b/libstdc++-v3/aclocal.m4
@@ -1280,6 +1280,12 @@ AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
   esac
   AC_LINK_FILES($CSTDIO_H, bits/c++io.h)
   AC_LINK_FILES($CSTDIO_CC, src/c++io.cc)
+
+  # 2000-08-04 bkoz hack
+  CCODECVT_C=config/c_io_libio_codecvt.c
+  AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c)
+  # 2000-08-04 bkoz hack
+	
   AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
   AM_CONDITIONAL(GLIBCPP_NEED_XTRA_LIBIO, test "$need_xtra_libio" = yes)
   AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
diff --git a/libstdc++-v3/bits/basic_file.h b/libstdc++-v3/bits/basic_file.h
index 4d5d41f7793..498dc50ec7f 100644
--- a/libstdc++-v3/bits/basic_file.h
+++ b/libstdc++-v3/bits/basic_file.h
@@ -38,13 +38,82 @@
 #include <bits/std_ios.h>
 
 namespace std {
-  
+
+  // Ulrich is going to make some detailed comment here, explaining
+  // all this unpleasantness, providing detailed performance analysis
+  // as to why we have to do all this lame vtable hacking instead of a
+  // sane, function-based approach. This verbage will provide a clear
+  // and detailed description of the whole object-layout,
+  // vtable-swapping, sordid history of this hack.
+  template<typename _CharT>
+  struct __basic_file_base: public __c_file_type
+  {
+    virtual 
+    ~__basic_file_base() { };
+
+    virtual int 
+    overflow(int __c = EOF) = 0;
+
+    virtual int 
+    underflow() = 0;
+
+    virtual int 
+    uflow() = 0;
+
+    virtual int 
+    pbackfail(int __c) = 0;
+
+    virtual streamsize 
+    xsputn(const _CharT* __s, streamsize __n) = 0;
+
+    virtual streamsize 
+    xsgetn(_CharT* __s, streamsize __n) = 0;
+
+    virtual streamoff
+    seekoff(streamoff __off, ios_base::seekdir __way,
+	    ios_base::openmode __mode = ios_base::in | ios_base::out) = 0;
+
+    virtual streamoff
+    seekpos(streamoff __pos, 
+	    ios_base::openmode __mode = ios_base::in | ios_base::out) = 0;
+
+    virtual streambuf* 
+    setbuf(_CharT* __b, int __len) = 0;
+
+    virtual int 
+    sync() = 0;
+
+    virtual int 
+    doallocate() = 0;
+
+    virtual streamsize 
+    sys_read(_CharT* __s, streamsize __n) = 0;
+
+    virtual streamsize 
+    sys_write(const _CharT* __s, streamsize __n) = 0;
+
+    virtual streamoff
+    sys_seek(streamoff __off, ios_base::seekdir __way) = 0;
+
+    virtual int 
+    sys_close() = 0;
+
+    virtual int 
+    sys_stat(void* __v) = 0;
+
+    virtual int 
+    showmanyc() = 0;
+
+    virtual void 
+    imbue(void* __v) = 0;
+  };
+
   // Some of these member functions are based on libio/filebuf.cc.
   // Also note that the order and number of virtual functions has to precisely
   // match the order and number in the _IO_jump_t struct defined in libioP.h.
   template<typename _CharT>
 #if _GLIBCPP_BASIC_FILE_INHERITANCE
-    class __basic_file: public __c_file_type
+    class __basic_file: public __basic_file_base<_CharT>
 #else
     class __basic_file
 #endif
@@ -53,6 +122,7 @@ namespace std {
       int 		_M_fileno;
       __c_file_type* 	_M_cfile;
 #endif
+      __c_wfile_type	_M_wfile;
 
     public:
       __basic_file(__c_lock* __lock = 0);
@@ -104,13 +174,13 @@ namespace std {
       // ponters and associated data members correctly and manages it's
       // relation to the external byte sequence.
       virtual streamsize 
-      xsputn(const char* __s, streamsize __n);
+      xsputn(const _CharT* __s, streamsize __n);
 
       // A complex "read" function that sets all of __c_file_type's
       // ponters and associated data members correctly and manages it's
       // relation to the external byte sequence.
       virtual streamsize 
-      xsgetn(char* __s, streamsize __n);
+      xsgetn(_CharT* __s, streamsize __n);
 
       // A complex "seekoff" function that sets all of __c_file_type's
       // ponters and associated data members correctly and manages it's
@@ -139,13 +209,13 @@ namespace std {
       // does no mucking around with or setting of the pointers or flags
       // in __c_file_type.
       virtual streamsize 
-      sys_read(char* __s, streamsize __n);
+      sys_read(_CharT* __s, streamsize __n);
 
       // A simple write function for the external byte sequence, that
       // does no mucking around with or setting of the pointers or flags
       // in __c_file_type.
       virtual streamsize 
-      sys_write(const char* __s, streamsize __n);
+      sys_write(const _CharT* __s, streamsize __n);
 
       // A simple seek function for the external byte sequence, that
       // does no mucking around with or setting of the pointers or flags
@@ -178,6 +248,14 @@ namespace std {
     int 
     __basic_file<char>::underflow();
 
+  template<>
+    int 
+    __basic_file<char>::uflow();
+
+  template<>
+    int 
+    __basic_file<char>::pbackfail(int __c);
+
   template<>
     streamsize 
     __basic_file<char>::xsputn(const char* __s, streamsize __n);
@@ -216,9 +294,17 @@ namespace std {
     int 
     __basic_file<wchar_t>::underflow();
 
+  template<>
+    int 
+    __basic_file<wchar_t>::uflow();
+
+  template<>
+    int 
+    __basic_file<wchar_t>::pbackfail(int __c);
+
   template<>
     streamsize 
-    __basic_file<wchar_t>::xsputn(const char* __s, streamsize __n);
+    __basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n);
 
   template<>
     streamoff
diff --git a/libstdc++-v3/bits/fstream.tcc b/libstdc++-v3/bits/fstream.tcc
index 57968a769bd..d3a57501097 100644
--- a/libstdc++-v3/bits/fstream.tcc
+++ b/libstdc++-v3/bits/fstream.tcc
@@ -235,10 +235,30 @@ namespace std
 
 	  if (__testinit || __testget)
 	    {
+#if 1
+	      streamsize __size = _M_file->xsgetn(_M_in_beg, _M_buf_size);
+	      if (0 < __size)
+		{
+		  _M_set_determinate(__size);
+		  streamoff __p = _M_file->seekoff(0 - __size, ios_base::cur, 
+						   ios_base::in);
+		  if (__p == -1)
+		    {
+		      // XXX Something is wrong, do error checking.
+		    }
+		  else
+		    {
+		      if (__testout)
+			_M_out_cur = _M_in_cur;
+		      __ret = traits_type::to_int_type(*_M_in_cur);
+		    }
+		}
+#else
+	      // 2000-08-04 bkoz disable
 	      // Part one: (Re)fill external buf (_M_file->_IO_*) from
 	      // external byte sequence (whatever physical byte sink or
 	      // FILE actually is.)
-	      char __conv_buf[_M_buf_size];
+	      char_type __conv_buf[_M_buf_size];
 	      streamsize __size = _M_file->xsgetn(__conv_buf, _M_buf_size);
 	      
 	      // Part two: (Re)fill internal buf contents from external buf.
@@ -278,7 +298,8 @@ namespace std
 		      // XXX Something is wrong, do error checking.
 		    }
 		}
-	    }	      
+#endif	      
+	    }
 	}
       _M_last_overflowed = false;	
       return __ret;
@@ -384,10 +405,29 @@ namespace std
     {
       int_type __ret = traits_type::eof();
       bool __testput = _M_out_cur && _M_out_beg < _M_out_end;
-      bool __testeof = traits_type::eq_int_type(__c, traits_type::eof());
       
       if (__testput)
 	{
+	  bool __testeof = traits_type::eq_int_type(__c, traits_type::eof());
+#if 1
+	  int __plen = _M_out_end - _M_out_beg;
+	  streamsize __len = _M_file->xsputn(_M_out_beg, __plen);
+	  if (!__testeof)
+	    {
+	      char_type __pending = traits_type::to_char_type(__c);
+	      __len += _M_file->xsputn(&__pending, 1);
+	      ++__plen;
+	    }
+	  traits_type::to_char_type(__c);
+	  // NB: Need this so that external byte sequence reflects
+	  // internal buffer.
+	  _M_file->sync();
+	  if (__len == __plen)
+	    {
+	      _M_set_indeterminate();
+	      __ret = traits_type::not_eof(__c);
+	    }
+#else
 	  // Part one: Allocate temporary conversion buffer on
 	  // stack. Convert internal buffer plus __c (ie,
 	  // "pending sequence") to temporary conversion buffer.
@@ -427,6 +467,7 @@ namespace std
 		  __ret = traits_type::not_eof(__c);
 		}
 	    }
+#endif
 	}	      
       _M_last_overflowed = true;	
       return __ret;
diff --git a/libstdc++-v3/config/c_io_libio.cc b/libstdc++-v3/config/c_io_libio.cc
index caefddc7f1b..6b3586262ac 100644
--- a/libstdc++-v3/config/c_io_libio.cc
+++ b/libstdc++-v3/config/c_io_libio.cc
@@ -36,7 +36,12 @@
 #include <fcntl.h> 		// Solaris needs for O_* macros
 
 namespace std {
-  
+
+  // Need to instantiate base class here for type-info bits, etc
+  template struct __basic_file_base<char>;
+  template struct __basic_file_base<wchar_t>;
+
+  // Generic definitions for __basic_file
   template<typename _CharT>
     int 
     __basic_file<_CharT>::get_fileno(void)
@@ -104,17 +109,17 @@ namespace std {
       int __rw_mode = _IO_NO_READS + _IO_NO_WRITES; 
       
       _M_open_mode(__mode, __p_mode, __rw_mode);
-      // _IO_file_attach 
-      //  sets _IO_DELETE_DONT_CLOSE
-      //  clears _IO_NO_READS + _IO_NO_WRITES
-      if (_IO_file_attach(this, __fd) != NULL)
+
+      if (!_IO_file_is_open(this))
 	{
-	  // Set flags appropriately for openmode...
+	  _fileno = __fd;
+	  _flags &= ~(_IO_NO_READS+_IO_NO_WRITES);
+	  _flags |= _IO_DELETE_DONT_CLOSE;
+	  _offset = _IO_pos_BAD;
 	  int __mask = _IO_NO_READS + _IO_NO_WRITES + _IO_IS_APPENDING;
 	  _IO_mask_flags(this, __rw_mode, __mask);
 	}
-      else
-	_IO_un_link((_IO_FILE_plus*) this);
+
       return __ret;
     }
   
@@ -147,34 +152,22 @@ namespace std {
     { 
       return _IO_file_close_it(this) ? static_cast<__basic_file*>(NULL) : this;
     }
-
-  // NB: Unused.
-  template<typename _CharT>
-    int 
-    __basic_file<_CharT>::uflow()  
-    { return _IO_default_uflow(this); }
-  
-  // NB: Unused.
-  template<typename _CharT>
-    int 
-    __basic_file<_CharT>::pbackfail(int __c) 
-    { return _IO_default_pbackfail(this, __c); }
-  
+ 
   template<typename _CharT>
     streamsize 
-    __basic_file<_CharT>::xsgetn(char* __s, streamsize __n)
+    __basic_file<_CharT>::xsgetn(_CharT* __s, streamsize __n)
     { return _IO_file_xsgetn(this, __s, __n); }
 
   // NB: Unused.
   template<typename _CharT>
     streamsize 
-    __basic_file<_CharT>::sys_read(char* __s, streamsize __n) 
+    __basic_file<_CharT>::sys_read(_CharT* __s, streamsize __n) 
     { return _IO_file_read(this, __s, __n); }
 
   // NB: Unused.    
   template<typename _CharT>
     streamsize 
-    __basic_file<_CharT>::sys_write(const char* __s, streamsize __n) 
+    __basic_file<_CharT>::sys_write(const _CharT* __s, streamsize __n) 
     { return _IO_file_write(this, __s, __n); }
 
   // NB: Unused.
@@ -211,7 +204,8 @@ namespace std {
 #ifdef _IO_MTSAFE_IO
     _lock = __lock;
 #endif
-    _IO_no_init(this, 0 /* ??? */, -1, 0, 0);
+    // Don't set the orientation of the stream when initializing.
+    _IO_no_init(this, 0, 0, &_M_wfile, 0);
     _IO_JUMPS(this) = &_IO_file_jumps;
     _IO_file_init((_IO_FILE_plus*)this);
   }
@@ -226,6 +220,16 @@ namespace std {
   __basic_file<char>::underflow()  
   { return _IO_file_underflow(this); }
 
+  // NB: Unused.
+  int 
+  __basic_file<char>::uflow()  
+  { return _IO_default_uflow(this); }
+
+  // NB: Unused.
+  int 
+  __basic_file<char>::pbackfail(int __c) 
+  { return _IO_default_pbackfail(this, __c); }
+ 
   streamsize 
   __basic_file<char>::xsputn(const char* __s, streamsize __n)
   { return _IO_file_xsputn(this, __s, __n); }
@@ -262,11 +266,32 @@ namespace std {
 #ifdef _IO_MTSAFE_IO
     _lock = __lock;
 #endif
-    // bkoz this should be -1
-    //    _IO_no_init(this, 0 /* ??? */, 1, 0, 0);
-    _IO_no_init(this, 0 /* ??? */, -1, 0, 0);
-    _IO_JUMPS(this) = &_IO_file_jumps;
+    // Don't set the orientation of the stream when initializing.
+    _IO_no_init(this, 0, 0, &_M_wfile, &_IO_wfile_jumps);
+    _IO_JUMPS(this) = &_IO_wfile_jumps;
     _IO_file_init((_IO_FILE_plus*)this);
+
+    // In addition, need to allocate the buffer...
+    _IO_wdoallocbuf(this);
+    // Setup initial positions for this buffer...
+    //    if (!(_flags & _IO_NO_READS))
+    _IO_wsetg(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base,
+	      _wide_data->_IO_buf_base);
+    //    if (!(_flags & _IO_NO_WRITES))
+    _IO_wsetp(this, _wide_data->_IO_buf_base, _wide_data->_IO_buf_base);
+    
+    // Setup codecvt bits...
+    _wide_data->_codecvt = __c_libio_codecvt;
+    
+    // Do the same for narrow bits...
+    if (_IO_write_base == NULL)
+      {
+	_IO_doallocbuf(this);
+	//      if (!(_flags & _IO_NO_READS))
+	_IO_setg(this, _IO_buf_base, _IO_buf_base, _IO_buf_base);
+	//    if (!(_flags & _IO_NO_WRITES))
+	_IO_setp(this, _IO_buf_base, _IO_buf_base);
+      }
   }
 
  int 
@@ -277,8 +302,18 @@ namespace std {
   __basic_file<wchar_t>::underflow()  
   { return _IO_wfile_underflow(this); }
 
+  // NB: Unused.
+  int 
+  __basic_file<wchar_t>::uflow()  
+  { return _IO_wdefault_uflow(this); }
+
+  // NB: Unused.
+  int 
+  __basic_file<wchar_t>::pbackfail(int __c) 
+  { return _IO_wdefault_pbackfail(this, __c); }
+
   streamsize 
-  __basic_file<wchar_t>::xsputn(const char* __s, streamsize __n)
+  __basic_file<wchar_t>::xsputn(const wchar_t* __s, streamsize __n)
   { return _IO_wfile_xsputn(this, __s, __n); }
   
   streamoff
diff --git a/libstdc++-v3/config/c_io_libio.h b/libstdc++-v3/config/c_io_libio.h
index 088231ec155..db8b6c7a97f 100644
--- a/libstdc++-v3/config/c_io_libio.h
+++ b/libstdc++-v3/config/c_io_libio.h
@@ -53,8 +53,11 @@ namespace std {
   typedef _IO_lock_t	__c_lock;
 
 // from basic_file.h
-  typedef _IO_FILE 	__c_file_type;
 #define _GLIBCPP_BASIC_FILE_INHERITANCE 1
+  typedef _IO_FILE 	__c_file_type;
+  typedef _IO_wide_data __c_wfile_type;
+
+  extern "C" struct _IO_codecvt __c_libio_codecvt;
 
 // from ios_base.h
   struct __ios_flags
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 1b909be0d25..d1b4b7f6f42 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -2791,6 +2791,12 @@ rm -f conftest*
   esac
   
   
+
+  # 2000-08-04 bkoz hack
+  CCODECVT_C=config/c_io_libio_codecvt.c
+  
+  # 2000-08-04 bkoz hack
+	
   
 
 if test "$need_libio" = yes; then
@@ -2834,12 +2840,12 @@ fi
 
   # Check for the existance of functions used if long long is enabled.
   echo $ac_n "checking for strtoll""... $ac_c" 1>&6
-echo "configure:2838: checking for strtoll" >&5
+echo "configure:2844: checking for strtoll" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoll'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2843 "configure"
+#line 2849 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoll(); below.  */
@@ -2862,7 +2868,7 @@ strtoll();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2872: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtoll=yes"
 else
@@ -2883,12 +2889,12 @@ ac_strtoll=no
 fi
 
   echo $ac_n "checking for strtoull""... $ac_c" 1>&6
-echo "configure:2887: checking for strtoull" >&5
+echo "configure:2893: checking for strtoull" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoull'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2892 "configure"
+#line 2898 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoull(); below.  */
@@ -2911,7 +2917,7 @@ strtoull();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2921: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtoull=yes"
 else
@@ -2933,7 +2939,7 @@ fi
 
 
   echo $ac_n "checking for enabled long long""... $ac_c" 1>&6
-echo "configure:2937: checking for enabled long long" >&5
+echo "configure:2943: checking for enabled long long" >&5
   if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then 
     enable_long_long=no; 
   fi; 
@@ -2948,7 +2954,7 @@ EOF
   esac
 
 echo $ac_n "checking for enabled cshadow headers""... $ac_c" 1>&6
-echo "configure:2952: checking for enabled cshadow headers" >&5
+echo "configure:2958: checking for enabled cshadow headers" >&5
 # Check whether --enable-cshadow-headers or --disable-cshadow-headers was given.
 if test "${enable_cshadow_headers+set}" = set; then
   enableval="$enable_cshadow_headers"
@@ -2989,7 +2995,7 @@ fi
 
 
       echo $ac_n "checking for threads package to use""... $ac_c" 1>&6
-echo "configure:2993: checking for threads package to use" >&5
+echo "configure:2999: checking for threads package to use" >&5
   # Check whether --enable-threads or --disable-threads was given.
 if test "${enable_threads+set}" = set; then
   enableval="$enable_threads"
@@ -3052,17 +3058,17 @@ fi
     posix)
       ac_safe=`echo "pthread.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for pthread.h""... $ac_c" 1>&6
-echo "configure:3056: checking for pthread.h" >&5
+echo "configure:3062: checking for pthread.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3061 "configure"
+#line 3067 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3066: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3072: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3260,17 +3266,17 @@ else
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3264: checking for $ac_hdr" >&5
+echo "configure:3270: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3269 "configure"
+#line 3275 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3274: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3280: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3315,10 +3321,10 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
   # Check for pragma system_header.
   echo $ac_n "checking for g++ that supports pragma system_header""... $ac_c" 1>&6
-echo "configure:3319: checking for g++ that supports pragma system_header" >&5
+echo "configure:3325: checking for g++ that supports pragma system_header" >&5
   CXXFLAGS='-Wunknown-pragmas -Werror'
   cat > conftest.$ac_ext <<EOF
-#line 3322 "configure"
+#line 3328 "configure"
 #include "confdefs.h"
 #pragma GCC system_header
 int main() {
@@ -3326,7 +3332,7 @@ int foo;
   
 ; return 0; }
 EOF
-if { (eval echo configure:3330: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3336: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_newpragma=yes
 else
@@ -3349,10 +3355,10 @@ rm -f conftest*
 
   # Check for more sophisticated diagnostic control.
   echo $ac_n "checking for g++ that supports -fdiagnostics-show-location=once""... $ac_c" 1>&6
-echo "configure:3353: checking for g++ that supports -fdiagnostics-show-location=once" >&5
+echo "configure:3359: checking for g++ that supports -fdiagnostics-show-location=once" >&5
   CXXFLAGS='-fdiagnostics-show-location=once'
   cat > conftest.$ac_ext <<EOF
-#line 3356 "configure"
+#line 3362 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3360,7 +3366,7 @@ int foo;
   
 ; return 0; }
 EOF
-if { (eval echo configure:3364: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3370: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_gabydiags=yes
 else
@@ -3383,10 +3389,10 @@ rm -f conftest*
 
   # Check for -ffunction-sections -fdata-sections
   echo $ac_n "checking for g++ that supports -ffunction-sections -fdata-sections""... $ac_c" 1>&6
-echo "configure:3387: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
+echo "configure:3393: checking for g++ that supports -ffunction-sections -fdata-sections" >&5
   CXXFLAGS='-ffunction-sections -fdata-sections'
   cat > conftest.$ac_ext <<EOF
-#line 3390 "configure"
+#line 3396 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -3394,7 +3400,7 @@ int foo;
   
 ; return 0; }
 EOF
-if { (eval echo configure:3398: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3404: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_fdsections=yes
 else
@@ -3445,12 +3451,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
     # Check for -Wl,--gc-sections
     echo $ac_n "checking for ld that supports -Wl,--gc-sections""... $ac_c" 1>&6
-echo "configure:3449: checking for ld that supports -Wl,--gc-sections" >&5
+echo "configure:3455: checking for ld that supports -Wl,--gc-sections" >&5
     if test "$cross_compiling" = yes; then
   ac_sectionLDflags=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 3454 "configure"
+#line 3460 "configure"
 #include "confdefs.h"
 
      int main(void) 
@@ -3461,7 +3467,7 @@ else
      }
     
 EOF
-if { (eval echo configure:3465: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3471: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_sectionLDflags=yes
 else
@@ -3492,7 +3498,7 @@ fi
   
       
   echo $ac_n "checking for __builtin_abs declaration""... $ac_c" 1>&6
-echo "configure:3496: checking for __builtin_abs declaration" >&5
+echo "configure:3502: checking for __builtin_abs declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_abs_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3506,14 +3512,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3510 "configure"
+#line 3516 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_abs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3517: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3523: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_abs_use=yes
 else
@@ -3536,20 +3542,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_abs_use" 1>&6
   if test x$glibcpp_cv_func___builtin_abs_use = x"yes"; then
     echo $ac_n "checking for __builtin_abs linkage""... $ac_c" 1>&6
-echo "configure:3540: checking for __builtin_abs linkage" >&5
+echo "configure:3546: checking for __builtin_abs linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_abs_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3546 "configure"
+#line 3552 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_abs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3553: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3559: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_abs_link=yes
 else
@@ -3574,7 +3580,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_fabsf declaration""... $ac_c" 1>&6
-echo "configure:3578: checking for __builtin_fabsf declaration" >&5
+echo "configure:3584: checking for __builtin_fabsf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3588,14 +3594,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3592 "configure"
+#line 3598 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3599: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3605: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabsf_use=yes
 else
@@ -3618,20 +3624,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_fabsf_use" 1>&6
   if test x$glibcpp_cv_func___builtin_fabsf_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabsf linkage""... $ac_c" 1>&6
-echo "configure:3622: checking for __builtin_fabsf linkage" >&5
+echo "configure:3628: checking for __builtin_fabsf linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsf_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3628 "configure"
+#line 3634 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3641: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabsf_link=yes
 else
@@ -3656,7 +3662,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_fabs declaration""... $ac_c" 1>&6
-echo "configure:3660: checking for __builtin_fabs declaration" >&5
+echo "configure:3666: checking for __builtin_fabs declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabs_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3670,14 +3676,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3674 "configure"
+#line 3680 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3681: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3687: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabs_use=yes
 else
@@ -3700,20 +3706,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_fabs_use" 1>&6
   if test x$glibcpp_cv_func___builtin_fabs_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabs linkage""... $ac_c" 1>&6
-echo "configure:3704: checking for __builtin_fabs linkage" >&5
+echo "configure:3710: checking for __builtin_fabs linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabs_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3710 "configure"
+#line 3716 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3717: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3723: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabs_link=yes
 else
@@ -3738,7 +3744,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_fabsl declaration""... $ac_c" 1>&6
-echo "configure:3742: checking for __builtin_fabsl declaration" >&5
+echo "configure:3748: checking for __builtin_fabsl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3752,14 +3758,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3756 "configure"
+#line 3762 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3763: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3769: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabsl_use=yes
 else
@@ -3782,20 +3788,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_fabsl_use" 1>&6
   if test x$glibcpp_cv_func___builtin_fabsl_use = x"yes"; then
     echo $ac_n "checking for __builtin_fabsl linkage""... $ac_c" 1>&6
-echo "configure:3786: checking for __builtin_fabsl linkage" >&5
+echo "configure:3792: checking for __builtin_fabsl linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fabsl_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3792 "configure"
+#line 3798 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3805: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fabsl_link=yes
 else
@@ -3820,7 +3826,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_labs declaration""... $ac_c" 1>&6
-echo "configure:3824: checking for __builtin_labs declaration" >&5
+echo "configure:3830: checking for __builtin_labs declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_labs_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3834,14 +3840,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3838 "configure"
+#line 3844 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_labs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3845: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3851: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_labs_use=yes
 else
@@ -3864,20 +3870,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_labs_use" 1>&6
   if test x$glibcpp_cv_func___builtin_labs_use = x"yes"; then
     echo $ac_n "checking for __builtin_labs linkage""... $ac_c" 1>&6
-echo "configure:3868: checking for __builtin_labs linkage" >&5
+echo "configure:3874: checking for __builtin_labs linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_labs_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3874 "configure"
+#line 3880 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_labs(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3881: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3887: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_labs_link=yes
 else
@@ -3903,7 +3909,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_sqrtf declaration""... $ac_c" 1>&6
-echo "configure:3907: checking for __builtin_sqrtf declaration" >&5
+echo "configure:3913: checking for __builtin_sqrtf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3917,14 +3923,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 3921 "configure"
+#line 3927 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3928: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3934: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sqrtf_use=yes
 else
@@ -3947,20 +3953,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_sqrtf_use" 1>&6
   if test x$glibcpp_cv_func___builtin_sqrtf_use = x"yes"; then
     echo $ac_n "checking for __builtin_sqrtf linkage""... $ac_c" 1>&6
-echo "configure:3951: checking for __builtin_sqrtf linkage" >&5
+echo "configure:3957: checking for __builtin_sqrtf linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtf_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 3957 "configure"
+#line 3963 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:3964: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3970: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sqrtf_link=yes
 else
@@ -3985,7 +3991,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_fsqrt declaration""... $ac_c" 1>&6
-echo "configure:3989: checking for __builtin_fsqrt declaration" >&5
+echo "configure:3995: checking for __builtin_fsqrt declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fsqrt_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3999,14 +4005,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4003 "configure"
+#line 4009 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fsqrt(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4010: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4016: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fsqrt_use=yes
 else
@@ -4029,20 +4035,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_fsqrt_use" 1>&6
   if test x$glibcpp_cv_func___builtin_fsqrt_use = x"yes"; then
     echo $ac_n "checking for __builtin_fsqrt linkage""... $ac_c" 1>&6
-echo "configure:4033: checking for __builtin_fsqrt linkage" >&5
+echo "configure:4039: checking for __builtin_fsqrt linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_fsqrt_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4039 "configure"
+#line 4045 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_fsqrt(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4046: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4052: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_fsqrt_link=yes
 else
@@ -4067,7 +4073,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_sqrtl declaration""... $ac_c" 1>&6
-echo "configure:4071: checking for __builtin_sqrtl declaration" >&5
+echo "configure:4077: checking for __builtin_sqrtl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4081,14 +4087,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4085 "configure"
+#line 4091 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4092: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4098: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sqrtl_use=yes
 else
@@ -4111,20 +4117,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_sqrtl_use" 1>&6
   if test x$glibcpp_cv_func___builtin_sqrtl_use = x"yes"; then
     echo $ac_n "checking for __builtin_sqrtl linkage""... $ac_c" 1>&6
-echo "configure:4115: checking for __builtin_sqrtl linkage" >&5
+echo "configure:4121: checking for __builtin_sqrtl linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sqrtl_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4121 "configure"
+#line 4127 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4128: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sqrtl_link=yes
 else
@@ -4150,7 +4156,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_sinf declaration""... $ac_c" 1>&6
-echo "configure:4154: checking for __builtin_sinf declaration" >&5
+echo "configure:4160: checking for __builtin_sinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4164,14 +4170,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4168 "configure"
+#line 4174 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4175: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4181: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sinf_use=yes
 else
@@ -4194,20 +4200,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_sinf_use" 1>&6
   if test x$glibcpp_cv_func___builtin_sinf_use = x"yes"; then
     echo $ac_n "checking for __builtin_sinf linkage""... $ac_c" 1>&6
-echo "configure:4198: checking for __builtin_sinf linkage" >&5
+echo "configure:4204: checking for __builtin_sinf linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinf_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4204 "configure"
+#line 4210 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4211: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4217: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sinf_link=yes
 else
@@ -4232,7 +4238,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_sin declaration""... $ac_c" 1>&6
-echo "configure:4236: checking for __builtin_sin declaration" >&5
+echo "configure:4242: checking for __builtin_sin declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sin_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4246,14 +4252,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4250 "configure"
+#line 4256 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sin(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4257: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4263: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sin_use=yes
 else
@@ -4276,20 +4282,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_sin_use" 1>&6
   if test x$glibcpp_cv_func___builtin_sin_use = x"yes"; then
     echo $ac_n "checking for __builtin_sin linkage""... $ac_c" 1>&6
-echo "configure:4280: checking for __builtin_sin linkage" >&5
+echo "configure:4286: checking for __builtin_sin linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sin_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4286 "configure"
+#line 4292 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sin(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4293: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4299: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sin_link=yes
 else
@@ -4314,7 +4320,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_sinl declaration""... $ac_c" 1>&6
-echo "configure:4318: checking for __builtin_sinl declaration" >&5
+echo "configure:4324: checking for __builtin_sinl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4328,14 +4334,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4332 "configure"
+#line 4338 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4339: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4345: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sinl_use=yes
 else
@@ -4358,20 +4364,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_sinl_use" 1>&6
   if test x$glibcpp_cv_func___builtin_sinl_use = x"yes"; then
     echo $ac_n "checking for __builtin_sinl linkage""... $ac_c" 1>&6
-echo "configure:4362: checking for __builtin_sinl linkage" >&5
+echo "configure:4368: checking for __builtin_sinl linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_sinl_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4368 "configure"
+#line 4374 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4375: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4381: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_sinl_link=yes
 else
@@ -4397,7 +4403,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_cosf declaration""... $ac_c" 1>&6
-echo "configure:4401: checking for __builtin_cosf declaration" >&5
+echo "configure:4407: checking for __builtin_cosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4411,14 +4417,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4415 "configure"
+#line 4421 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4422: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4428: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cosf_use=yes
 else
@@ -4441,20 +4447,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_cosf_use" 1>&6
   if test x$glibcpp_cv_func___builtin_cosf_use = x"yes"; then
     echo $ac_n "checking for __builtin_cosf linkage""... $ac_c" 1>&6
-echo "configure:4445: checking for __builtin_cosf linkage" >&5
+echo "configure:4451: checking for __builtin_cosf linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosf_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4451 "configure"
+#line 4457 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4464: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cosf_link=yes
 else
@@ -4479,7 +4485,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_cos declaration""... $ac_c" 1>&6
-echo "configure:4483: checking for __builtin_cos declaration" >&5
+echo "configure:4489: checking for __builtin_cos declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cos_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4493,14 +4499,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4497 "configure"
+#line 4503 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cos(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4504: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4510: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cos_use=yes
 else
@@ -4523,20 +4529,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_cos_use" 1>&6
   if test x$glibcpp_cv_func___builtin_cos_use = x"yes"; then
     echo $ac_n "checking for __builtin_cos linkage""... $ac_c" 1>&6
-echo "configure:4527: checking for __builtin_cos linkage" >&5
+echo "configure:4533: checking for __builtin_cos linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cos_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4533 "configure"
+#line 4539 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cos(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4540: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4546: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cos_link=yes
 else
@@ -4561,7 +4567,7 @@ EOF
 
   
   echo $ac_n "checking for __builtin_cosl declaration""... $ac_c" 1>&6
-echo "configure:4565: checking for __builtin_cosl declaration" >&5
+echo "configure:4571: checking for __builtin_cosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4575,14 +4581,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4579 "configure"
+#line 4585 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4586: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4592: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cosl_use=yes
 else
@@ -4605,20 +4611,20 @@ fi
   echo "$ac_t""$glibcpp_cv_func___builtin_cosl_use" 1>&6
   if test x$glibcpp_cv_func___builtin_cosl_use = x"yes"; then
     echo $ac_n "checking for __builtin_cosl linkage""... $ac_c" 1>&6
-echo "configure:4609: checking for __builtin_cosl linkage" >&5
+echo "configure:4615: checking for __builtin_cosl linkage" >&5
     if eval "test \"`echo '$''{'glibcpp_cv_func___builtin_cosl_link'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 4615 "configure"
+#line 4621 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  __builtin_cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4622: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4628: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   glibcpp_cv_func___builtin_cosl_link=yes
 else
@@ -4708,7 +4714,7 @@ EOF
   CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
 
     echo $ac_n "checking for sin in -lm""... $ac_c" 1>&6
-echo "configure:4712: checking for sin in -lm" >&5
+echo "configure:4718: checking for sin in -lm" >&5
 ac_lib_var=`echo m'_'sin | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4716,7 +4722,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4720 "configure"
+#line 4726 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -4727,7 +4733,7 @@ int main() {
 sin()
 ; return 0; }
 EOF
-if { (eval echo configure:4731: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4737: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4753,12 +4759,12 @@ fi
     for ac_func in strtof strtold
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4757: checking for $ac_func" >&5
+echo "configure:4763: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4762 "configure"
+#line 4768 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4781,7 +4787,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4808,7 +4814,7 @@ done
 
     
   echo $ac_n "checking for isinf declaration""... $ac_c" 1>&6
-echo "configure:4812: checking for isinf declaration" >&5
+echo "configure:4818: checking for isinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4822,14 +4828,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4826 "configure"
+#line 4832 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4833: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4839: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isinf_use=yes
 else
@@ -4854,12 +4860,12 @@ fi
     for ac_func in isinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4858: checking for $ac_func" >&5
+echo "configure:4864: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4863 "configure"
+#line 4869 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4882,7 +4888,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4886: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4892: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4910,7 +4916,7 @@ done
 
   
   echo $ac_n "checking for isnan declaration""... $ac_c" 1>&6
-echo "configure:4914: checking for isnan declaration" >&5
+echo "configure:4920: checking for isnan declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isnan_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4924,14 +4930,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 4928 "configure"
+#line 4934 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnan(0);
 ; return 0; }
 EOF
-if { (eval echo configure:4935: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4941: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isnan_use=yes
 else
@@ -4956,12 +4962,12 @@ fi
     for ac_func in isnan
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4960: checking for $ac_func" >&5
+echo "configure:4966: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4965 "configure"
+#line 4971 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4984,7 +4990,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4988: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4994: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5012,7 +5018,7 @@ done
 
   
   echo $ac_n "checking for finite declaration""... $ac_c" 1>&6
-echo "configure:5016: checking for finite declaration" >&5
+echo "configure:5022: checking for finite declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_finite_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5026,14 +5032,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5030 "configure"
+#line 5036 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finite(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5037: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5043: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_finite_use=yes
 else
@@ -5058,12 +5064,12 @@ fi
     for ac_func in finite
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5062: checking for $ac_func" >&5
+echo "configure:5068: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5067 "configure"
+#line 5073 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5086,7 +5092,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5090: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5096: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5114,7 +5120,7 @@ done
 
   
   echo $ac_n "checking for copysign declaration""... $ac_c" 1>&6
-echo "configure:5118: checking for copysign declaration" >&5
+echo "configure:5124: checking for copysign declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_copysign_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5128,14 +5134,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5132 "configure"
+#line 5138 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  copysign(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:5139: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5145: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_copysign_use=yes
 else
@@ -5160,12 +5166,12 @@ fi
     for ac_func in copysign
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5164: checking for $ac_func" >&5
+echo "configure:5170: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5169 "configure"
+#line 5175 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5188,7 +5194,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5192: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5198: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5216,7 +5222,7 @@ done
 
   
   echo $ac_n "checking for sincos declaration""... $ac_c" 1>&6
-echo "configure:5220: checking for sincos declaration" >&5
+echo "configure:5226: checking for sincos declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sincos_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5230,14 +5236,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5234 "configure"
+#line 5240 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincos(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:5241: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5247: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sincos_use=yes
 else
@@ -5262,12 +5268,12 @@ fi
     for ac_func in sincos
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5266: checking for $ac_func" >&5
+echo "configure:5272: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5271 "configure"
+#line 5277 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5290,7 +5296,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5294: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5318,7 +5324,7 @@ done
 
   
   echo $ac_n "checking for fpclass declaration""... $ac_c" 1>&6
-echo "configure:5322: checking for fpclass declaration" >&5
+echo "configure:5328: checking for fpclass declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_fpclass_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5332,14 +5338,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5336 "configure"
+#line 5342 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5343: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5349: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_fpclass_use=yes
 else
@@ -5364,12 +5370,12 @@ fi
     for ac_func in fpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5368: checking for $ac_func" >&5
+echo "configure:5374: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5373 "configure"
+#line 5379 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5392,7 +5398,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5396: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5402: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5420,7 +5426,7 @@ done
 
   
   echo $ac_n "checking for qfpclass declaration""... $ac_c" 1>&6
-echo "configure:5424: checking for qfpclass declaration" >&5
+echo "configure:5430: checking for qfpclass declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_qfpclass_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5434,14 +5440,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5438 "configure"
+#line 5444 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  qfpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5445: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5451: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_qfpclass_use=yes
 else
@@ -5466,12 +5472,12 @@ fi
     for ac_func in qfpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5470: checking for $ac_func" >&5
+echo "configure:5476: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5475 "configure"
+#line 5481 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5494,7 +5500,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5498: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5504: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5523,7 +5529,7 @@ done
 
     
   echo $ac_n "checking for isnanf declaration""... $ac_c" 1>&6
-echo "configure:5527: checking for isnanf declaration" >&5
+echo "configure:5533: checking for isnanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isnanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5537,14 +5543,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5541 "configure"
+#line 5547 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5548: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5554: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isnanf_use=yes
 else
@@ -5569,12 +5575,12 @@ fi
     for ac_func in isnanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5573: checking for $ac_func" >&5
+echo "configure:5579: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5578 "configure"
+#line 5584 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5597,7 +5603,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5601: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5607: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5625,7 +5631,7 @@ done
 
   
   echo $ac_n "checking for isinff declaration""... $ac_c" 1>&6
-echo "configure:5629: checking for isinff declaration" >&5
+echo "configure:5635: checking for isinff declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isinff_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5639,14 +5645,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5643 "configure"
+#line 5649 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinff(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5650: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5656: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isinff_use=yes
 else
@@ -5671,12 +5677,12 @@ fi
     for ac_func in isinff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5675: checking for $ac_func" >&5
+echo "configure:5681: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5680 "configure"
+#line 5686 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5699,7 +5705,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5703: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5709: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5727,7 +5733,7 @@ done
 
   
   echo $ac_n "checking for acosf declaration""... $ac_c" 1>&6
-echo "configure:5731: checking for acosf declaration" >&5
+echo "configure:5737: checking for acosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_acosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5741,14 +5747,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5745 "configure"
+#line 5751 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  acosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5752: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5758: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_acosf_use=yes
 else
@@ -5773,12 +5779,12 @@ fi
     for ac_func in acosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5777: checking for $ac_func" >&5
+echo "configure:5783: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5782 "configure"
+#line 5788 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5801,7 +5807,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5805: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5811: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5829,7 +5835,7 @@ done
 
   
   echo $ac_n "checking for asinf declaration""... $ac_c" 1>&6
-echo "configure:5833: checking for asinf declaration" >&5
+echo "configure:5839: checking for asinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_asinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5843,14 +5849,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5847 "configure"
+#line 5853 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  asinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5854: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5860: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_asinf_use=yes
 else
@@ -5875,12 +5881,12 @@ fi
     for ac_func in asinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5879: checking for $ac_func" >&5
+echo "configure:5885: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5884 "configure"
+#line 5890 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5903,7 +5909,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5907: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5931,7 +5937,7 @@ done
 
   
   echo $ac_n "checking for atanf declaration""... $ac_c" 1>&6
-echo "configure:5935: checking for atanf declaration" >&5
+echo "configure:5941: checking for atanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_atanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5945,14 +5951,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 5949 "configure"
+#line 5955 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5956: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5962: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_atanf_use=yes
 else
@@ -5977,12 +5983,12 @@ fi
     for ac_func in atanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5981: checking for $ac_func" >&5
+echo "configure:5987: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5986 "configure"
+#line 5992 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6005,7 +6011,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6009: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6015: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6033,7 +6039,7 @@ done
 
   
   echo $ac_n "checking for atan2f declaration""... $ac_c" 1>&6
-echo "configure:6037: checking for atan2f declaration" >&5
+echo "configure:6043: checking for atan2f declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_atan2f_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6047,14 +6053,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6051 "configure"
+#line 6057 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atan2f(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6064: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_atan2f_use=yes
 else
@@ -6079,12 +6085,12 @@ fi
     for ac_func in atan2f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6083: checking for $ac_func" >&5
+echo "configure:6089: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6088 "configure"
+#line 6094 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6107,7 +6113,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6111: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6135,7 +6141,7 @@ done
 
   
   echo $ac_n "checking for ceilf declaration""... $ac_c" 1>&6
-echo "configure:6139: checking for ceilf declaration" >&5
+echo "configure:6145: checking for ceilf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_ceilf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6149,14 +6155,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6153 "configure"
+#line 6159 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ceilf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6160: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6166: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_ceilf_use=yes
 else
@@ -6181,12 +6187,12 @@ fi
     for ac_func in ceilf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6185: checking for $ac_func" >&5
+echo "configure:6191: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6190 "configure"
+#line 6196 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6209,7 +6215,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6213: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6219: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6237,7 +6243,7 @@ done
 
   
   echo $ac_n "checking for cosf declaration""... $ac_c" 1>&6
-echo "configure:6241: checking for cosf declaration" >&5
+echo "configure:6247: checking for cosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_cosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6251,14 +6257,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6255 "configure"
+#line 6261 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6262: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_cosf_use=yes
 else
@@ -6283,12 +6289,12 @@ fi
     for ac_func in cosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6287: checking for $ac_func" >&5
+echo "configure:6293: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6292 "configure"
+#line 6298 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6311,7 +6317,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6315: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6321: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6339,7 +6345,7 @@ done
 
   
   echo $ac_n "checking for coshf declaration""... $ac_c" 1>&6
-echo "configure:6343: checking for coshf declaration" >&5
+echo "configure:6349: checking for coshf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_coshf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6353,14 +6359,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6357 "configure"
+#line 6363 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  coshf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6364: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6370: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_coshf_use=yes
 else
@@ -6385,12 +6391,12 @@ fi
     for ac_func in coshf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6389: checking for $ac_func" >&5
+echo "configure:6395: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6394 "configure"
+#line 6400 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6413,7 +6419,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6417: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6441,7 +6447,7 @@ done
 
   
   echo $ac_n "checking for expf declaration""... $ac_c" 1>&6
-echo "configure:6445: checking for expf declaration" >&5
+echo "configure:6451: checking for expf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_expf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6455,14 +6461,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6459 "configure"
+#line 6465 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  expf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6466: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6472: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_expf_use=yes
 else
@@ -6487,12 +6493,12 @@ fi
     for ac_func in expf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6491: checking for $ac_func" >&5
+echo "configure:6497: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6496 "configure"
+#line 6502 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6515,7 +6521,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6525: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6543,7 +6549,7 @@ done
 
   
   echo $ac_n "checking for fabsf declaration""... $ac_c" 1>&6
-echo "configure:6547: checking for fabsf declaration" >&5
+echo "configure:6553: checking for fabsf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_fabsf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6557,14 +6563,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6561 "configure"
+#line 6567 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6568: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6574: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_fabsf_use=yes
 else
@@ -6589,12 +6595,12 @@ fi
     for ac_func in fabsf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6593: checking for $ac_func" >&5
+echo "configure:6599: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6598 "configure"
+#line 6604 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6617,7 +6623,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6627: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6645,7 +6651,7 @@ done
 
   
   echo $ac_n "checking for floorf declaration""... $ac_c" 1>&6
-echo "configure:6649: checking for floorf declaration" >&5
+echo "configure:6655: checking for floorf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_floorf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6659,14 +6665,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6663 "configure"
+#line 6669 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  floorf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:6670: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6676: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_floorf_use=yes
 else
@@ -6691,12 +6697,12 @@ fi
     for ac_func in floorf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6695: checking for $ac_func" >&5
+echo "configure:6701: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6700 "configure"
+#line 6706 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6719,7 +6725,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6723: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6747,7 +6753,7 @@ done
 
   
   echo $ac_n "checking for fmodf declaration""... $ac_c" 1>&6
-echo "configure:6751: checking for fmodf declaration" >&5
+echo "configure:6757: checking for fmodf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_fmodf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6761,14 +6767,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6765 "configure"
+#line 6771 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fmodf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6772: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6778: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_fmodf_use=yes
 else
@@ -6793,12 +6799,12 @@ fi
     for ac_func in fmodf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6797: checking for $ac_func" >&5
+echo "configure:6803: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6802 "configure"
+#line 6808 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6821,7 +6827,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6831: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6849,7 +6855,7 @@ done
 
   
   echo $ac_n "checking for frexpf declaration""... $ac_c" 1>&6
-echo "configure:6853: checking for frexpf declaration" >&5
+echo "configure:6859: checking for frexpf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_frexpf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6863,14 +6869,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6867 "configure"
+#line 6873 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  frexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6874: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6880: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_frexpf_use=yes
 else
@@ -6895,12 +6901,12 @@ fi
     for ac_func in frexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6899: checking for $ac_func" >&5
+echo "configure:6905: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6904 "configure"
+#line 6910 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6923,7 +6929,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6927: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6933: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6951,7 +6957,7 @@ done
 
   
   echo $ac_n "checking for ldexpf declaration""... $ac_c" 1>&6
-echo "configure:6955: checking for ldexpf declaration" >&5
+echo "configure:6961: checking for ldexpf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_ldexpf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6965,14 +6971,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 6969 "configure"
+#line 6975 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ldexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:6976: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6982: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_ldexpf_use=yes
 else
@@ -6997,12 +7003,12 @@ fi
     for ac_func in ldexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7001: checking for $ac_func" >&5
+echo "configure:7007: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7006 "configure"
+#line 7012 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7025,7 +7031,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7029: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7035: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7053,7 +7059,7 @@ done
 
   
   echo $ac_n "checking for logf declaration""... $ac_c" 1>&6
-echo "configure:7057: checking for logf declaration" >&5
+echo "configure:7063: checking for logf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_logf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7067,14 +7073,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7071 "configure"
+#line 7077 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  logf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7078: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7084: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_logf_use=yes
 else
@@ -7099,12 +7105,12 @@ fi
     for ac_func in logf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7103: checking for $ac_func" >&5
+echo "configure:7109: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7108 "configure"
+#line 7114 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7127,7 +7133,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7131: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7137: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7155,7 +7161,7 @@ done
 
   
   echo $ac_n "checking for log10f declaration""... $ac_c" 1>&6
-echo "configure:7159: checking for log10f declaration" >&5
+echo "configure:7165: checking for log10f declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_log10f_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7169,14 +7175,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7173 "configure"
+#line 7179 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  log10f(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7180: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7186: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_log10f_use=yes
 else
@@ -7201,12 +7207,12 @@ fi
     for ac_func in log10f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7205: checking for $ac_func" >&5
+echo "configure:7211: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7210 "configure"
+#line 7216 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7229,7 +7235,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7233: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7239: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7257,7 +7263,7 @@ done
 
   
   echo $ac_n "checking for modff declaration""... $ac_c" 1>&6
-echo "configure:7261: checking for modff declaration" >&5
+echo "configure:7267: checking for modff declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_modff_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7271,14 +7277,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7275 "configure"
+#line 7281 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  modff(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7282: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7288: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_modff_use=yes
 else
@@ -7303,12 +7309,12 @@ fi
     for ac_func in modff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7307: checking for $ac_func" >&5
+echo "configure:7313: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7312 "configure"
+#line 7318 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7331,7 +7337,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7335: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7341: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7359,7 +7365,7 @@ done
 
   
   echo $ac_n "checking for powf declaration""... $ac_c" 1>&6
-echo "configure:7363: checking for powf declaration" >&5
+echo "configure:7369: checking for powf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_powf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7373,14 +7379,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7377 "configure"
+#line 7383 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  powf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7384: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7390: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_powf_use=yes
 else
@@ -7405,12 +7411,12 @@ fi
     for ac_func in powf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7409: checking for $ac_func" >&5
+echo "configure:7415: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7414 "configure"
+#line 7420 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7433,7 +7439,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7437: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7443: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7461,7 +7467,7 @@ done
 
   
   echo $ac_n "checking for sinf declaration""... $ac_c" 1>&6
-echo "configure:7465: checking for sinf declaration" >&5
+echo "configure:7471: checking for sinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7475,14 +7481,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7479 "configure"
+#line 7485 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7486: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7492: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sinf_use=yes
 else
@@ -7507,12 +7513,12 @@ fi
     for ac_func in sinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7511: checking for $ac_func" >&5
+echo "configure:7517: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7516 "configure"
+#line 7522 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7535,7 +7541,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7539: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7545: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7563,7 +7569,7 @@ done
 
   
   echo $ac_n "checking for sinhf declaration""... $ac_c" 1>&6
-echo "configure:7567: checking for sinhf declaration" >&5
+echo "configure:7573: checking for sinhf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sinhf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7577,14 +7583,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7581 "configure"
+#line 7587 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7588: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7594: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sinhf_use=yes
 else
@@ -7609,12 +7615,12 @@ fi
     for ac_func in sinhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7613: checking for $ac_func" >&5
+echo "configure:7619: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7618 "configure"
+#line 7624 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7637,7 +7643,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7641: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7647: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7665,7 +7671,7 @@ done
 
   
   echo $ac_n "checking for sqrtf declaration""... $ac_c" 1>&6
-echo "configure:7669: checking for sqrtf declaration" >&5
+echo "configure:7675: checking for sqrtf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sqrtf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7679,14 +7685,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7683 "configure"
+#line 7689 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7690: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7696: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sqrtf_use=yes
 else
@@ -7711,12 +7717,12 @@ fi
     for ac_func in sqrtf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7715: checking for $ac_func" >&5
+echo "configure:7721: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7720 "configure"
+#line 7726 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7739,7 +7745,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7743: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7749: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7767,7 +7773,7 @@ done
 
   
   echo $ac_n "checking for tanf declaration""... $ac_c" 1>&6
-echo "configure:7771: checking for tanf declaration" >&5
+echo "configure:7777: checking for tanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_tanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7781,14 +7787,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7785 "configure"
+#line 7791 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7792: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7798: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_tanf_use=yes
 else
@@ -7813,12 +7819,12 @@ fi
     for ac_func in tanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7817: checking for $ac_func" >&5
+echo "configure:7823: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7822 "configure"
+#line 7828 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7841,7 +7847,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7845: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7851: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7869,7 +7875,7 @@ done
 
   
   echo $ac_n "checking for tanhf declaration""... $ac_c" 1>&6
-echo "configure:7873: checking for tanhf declaration" >&5
+echo "configure:7879: checking for tanhf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_tanhf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7883,14 +7889,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7887 "configure"
+#line 7893 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:7894: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:7900: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_tanhf_use=yes
 else
@@ -7915,12 +7921,12 @@ fi
     for ac_func in tanhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7919: checking for $ac_func" >&5
+echo "configure:7925: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7924 "configure"
+#line 7930 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7943,7 +7949,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7947: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7953: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7971,7 +7977,7 @@ done
 
   
   echo $ac_n "checking for sincosf declaration""... $ac_c" 1>&6
-echo "configure:7975: checking for sincosf declaration" >&5
+echo "configure:7981: checking for sincosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sincosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7985,14 +7991,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 7989 "configure"
+#line 7995 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincosf(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:7996: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8002: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sincosf_use=yes
 else
@@ -8017,12 +8023,12 @@ fi
     for ac_func in sincosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8021: checking for $ac_func" >&5
+echo "configure:8027: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8026 "configure"
+#line 8032 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8045,7 +8051,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8049: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8073,7 +8079,7 @@ done
 
   
   echo $ac_n "checking for finitef declaration""... $ac_c" 1>&6
-echo "configure:8077: checking for finitef declaration" >&5
+echo "configure:8083: checking for finitef declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_finitef_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8087,14 +8093,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8091 "configure"
+#line 8097 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finitef(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8098: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8104: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_finitef_use=yes
 else
@@ -8119,12 +8125,12 @@ fi
     for ac_func in finitef
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8123: checking for $ac_func" >&5
+echo "configure:8129: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8128 "configure"
+#line 8134 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8147,7 +8153,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8151: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8157: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8176,7 +8182,7 @@ done
 
     
   echo $ac_n "checking for isnanl declaration""... $ac_c" 1>&6
-echo "configure:8180: checking for isnanl declaration" >&5
+echo "configure:8186: checking for isnanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isnanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8190,14 +8196,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8194 "configure"
+#line 8200 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isnanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8201: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8207: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isnanl_use=yes
 else
@@ -8222,12 +8228,12 @@ fi
     for ac_func in isnanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8226: checking for $ac_func" >&5
+echo "configure:8232: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8231 "configure"
+#line 8237 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8250,7 +8256,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8254: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8260: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8278,7 +8284,7 @@ done
 
   
   echo $ac_n "checking for isinfl declaration""... $ac_c" 1>&6
-echo "configure:8282: checking for isinfl declaration" >&5
+echo "configure:8288: checking for isinfl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_isinfl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8292,14 +8298,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8296 "configure"
+#line 8302 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  isinfl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8303: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8309: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_isinfl_use=yes
 else
@@ -8324,12 +8330,12 @@ fi
     for ac_func in isinfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8328: checking for $ac_func" >&5
+echo "configure:8334: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8333 "configure"
+#line 8339 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8352,7 +8358,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8362: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8380,7 +8386,7 @@ done
 
   
   echo $ac_n "checking for copysignl declaration""... $ac_c" 1>&6
-echo "configure:8384: checking for copysignl declaration" >&5
+echo "configure:8390: checking for copysignl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_copysignl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8394,14 +8400,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8398 "configure"
+#line 8404 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  copysignl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8405: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8411: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_copysignl_use=yes
 else
@@ -8426,12 +8432,12 @@ fi
     for ac_func in copysignl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8430: checking for $ac_func" >&5
+echo "configure:8436: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8435 "configure"
+#line 8441 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8454,7 +8460,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8464: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8482,7 +8488,7 @@ done
 
   
   echo $ac_n "checking for acosl declaration""... $ac_c" 1>&6
-echo "configure:8486: checking for acosl declaration" >&5
+echo "configure:8492: checking for acosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_acosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8496,14 +8502,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8500 "configure"
+#line 8506 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  acosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8507: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8513: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_acosl_use=yes
 else
@@ -8528,12 +8534,12 @@ fi
     for ac_func in acosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8532: checking for $ac_func" >&5
+echo "configure:8538: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8537 "configure"
+#line 8543 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8556,7 +8562,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8560: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8566: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8584,7 +8590,7 @@ done
 
   
   echo $ac_n "checking for asinl declaration""... $ac_c" 1>&6
-echo "configure:8588: checking for asinl declaration" >&5
+echo "configure:8594: checking for asinl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_asinl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8598,14 +8604,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8602 "configure"
+#line 8608 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  asinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8609: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8615: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_asinl_use=yes
 else
@@ -8630,12 +8636,12 @@ fi
     for ac_func in asinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8634: checking for $ac_func" >&5
+echo "configure:8640: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8639 "configure"
+#line 8645 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8658,7 +8664,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8662: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8668: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8686,7 +8692,7 @@ done
 
   
   echo $ac_n "checking for atanl declaration""... $ac_c" 1>&6
-echo "configure:8690: checking for atanl declaration" >&5
+echo "configure:8696: checking for atanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_atanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8700,14 +8706,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8704 "configure"
+#line 8710 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8711: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8717: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_atanl_use=yes
 else
@@ -8732,12 +8738,12 @@ fi
     for ac_func in atanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8736: checking for $ac_func" >&5
+echo "configure:8742: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8741 "configure"
+#line 8747 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8760,7 +8766,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8764: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8770: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8788,7 +8794,7 @@ done
 
   
   echo $ac_n "checking for atan2l declaration""... $ac_c" 1>&6
-echo "configure:8792: checking for atan2l declaration" >&5
+echo "configure:8798: checking for atan2l declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_atan2l_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8802,14 +8808,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8806 "configure"
+#line 8812 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  atan2l(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:8813: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8819: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_atan2l_use=yes
 else
@@ -8834,12 +8840,12 @@ fi
     for ac_func in atan2l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8838: checking for $ac_func" >&5
+echo "configure:8844: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8843 "configure"
+#line 8849 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8862,7 +8868,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8872: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8890,7 +8896,7 @@ done
 
   
   echo $ac_n "checking for ceill declaration""... $ac_c" 1>&6
-echo "configure:8894: checking for ceill declaration" >&5
+echo "configure:8900: checking for ceill declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_ceill_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8904,14 +8910,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 8908 "configure"
+#line 8914 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ceill(0);
 ; return 0; }
 EOF
-if { (eval echo configure:8915: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:8921: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_ceill_use=yes
 else
@@ -8936,12 +8942,12 @@ fi
     for ac_func in ceill
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:8940: checking for $ac_func" >&5
+echo "configure:8946: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8945 "configure"
+#line 8951 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -8964,7 +8970,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:8968: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:8974: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -8992,7 +8998,7 @@ done
 
   
   echo $ac_n "checking for cosl declaration""... $ac_c" 1>&6
-echo "configure:8996: checking for cosl declaration" >&5
+echo "configure:9002: checking for cosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_cosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9006,14 +9012,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9010 "configure"
+#line 9016 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9017: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9023: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_cosl_use=yes
 else
@@ -9038,12 +9044,12 @@ fi
     for ac_func in cosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9042: checking for $ac_func" >&5
+echo "configure:9048: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9047 "configure"
+#line 9053 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9066,7 +9072,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9070: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9094,7 +9100,7 @@ done
 
   
   echo $ac_n "checking for coshl declaration""... $ac_c" 1>&6
-echo "configure:9098: checking for coshl declaration" >&5
+echo "configure:9104: checking for coshl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_coshl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9108,14 +9114,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9112 "configure"
+#line 9118 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  coshl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9119: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9125: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_coshl_use=yes
 else
@@ -9140,12 +9146,12 @@ fi
     for ac_func in coshl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9144: checking for $ac_func" >&5
+echo "configure:9150: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9149 "configure"
+#line 9155 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9168,7 +9174,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9172: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9178: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9196,7 +9202,7 @@ done
 
   
   echo $ac_n "checking for expl declaration""... $ac_c" 1>&6
-echo "configure:9200: checking for expl declaration" >&5
+echo "configure:9206: checking for expl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_expl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9210,14 +9216,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9214 "configure"
+#line 9220 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  expl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9227: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_expl_use=yes
 else
@@ -9242,12 +9248,12 @@ fi
     for ac_func in expl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9246: checking for $ac_func" >&5
+echo "configure:9252: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9251 "configure"
+#line 9257 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9270,7 +9276,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9274: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9280: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9298,7 +9304,7 @@ done
 
   
   echo $ac_n "checking for fabsl declaration""... $ac_c" 1>&6
-echo "configure:9302: checking for fabsl declaration" >&5
+echo "configure:9308: checking for fabsl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_fabsl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9312,14 +9318,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9316 "configure"
+#line 9322 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9323: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9329: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_fabsl_use=yes
 else
@@ -9344,12 +9350,12 @@ fi
     for ac_func in fabsl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9348: checking for $ac_func" >&5
+echo "configure:9354: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9353 "configure"
+#line 9359 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9372,7 +9378,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9376: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9382: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9400,7 +9406,7 @@ done
 
   
   echo $ac_n "checking for floorl declaration""... $ac_c" 1>&6
-echo "configure:9404: checking for floorl declaration" >&5
+echo "configure:9410: checking for floorl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_floorl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9414,14 +9420,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9418 "configure"
+#line 9424 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  floorl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9425: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9431: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_floorl_use=yes
 else
@@ -9446,12 +9452,12 @@ fi
     for ac_func in floorl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9450: checking for $ac_func" >&5
+echo "configure:9456: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9455 "configure"
+#line 9461 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9474,7 +9480,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9478: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9484: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9502,7 +9508,7 @@ done
 
   
   echo $ac_n "checking for fmodl declaration""... $ac_c" 1>&6
-echo "configure:9506: checking for fmodl declaration" >&5
+echo "configure:9512: checking for fmodl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_fmodl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9516,14 +9522,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9520 "configure"
+#line 9526 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  fmodl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:9527: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9533: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_fmodl_use=yes
 else
@@ -9548,12 +9554,12 @@ fi
     for ac_func in fmodl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9552: checking for $ac_func" >&5
+echo "configure:9558: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9557 "configure"
+#line 9563 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9576,7 +9582,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9586: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9604,7 +9610,7 @@ done
 
   
   echo $ac_n "checking for frexpl declaration""... $ac_c" 1>&6
-echo "configure:9608: checking for frexpl declaration" >&5
+echo "configure:9614: checking for frexpl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_frexpl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9618,14 +9624,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9622 "configure"
+#line 9628 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  frexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:9629: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9635: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_frexpl_use=yes
 else
@@ -9650,12 +9656,12 @@ fi
     for ac_func in frexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9654: checking for $ac_func" >&5
+echo "configure:9660: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9659 "configure"
+#line 9665 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9678,7 +9684,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9688: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9706,7 +9712,7 @@ done
 
   
   echo $ac_n "checking for ldexpl declaration""... $ac_c" 1>&6
-echo "configure:9710: checking for ldexpl declaration" >&5
+echo "configure:9716: checking for ldexpl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_ldexpl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9720,14 +9726,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9724 "configure"
+#line 9730 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  ldexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:9731: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9737: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_ldexpl_use=yes
 else
@@ -9752,12 +9758,12 @@ fi
     for ac_func in ldexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9756: checking for $ac_func" >&5
+echo "configure:9762: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9761 "configure"
+#line 9767 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9780,7 +9786,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9784: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9790: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9808,7 +9814,7 @@ done
 
   
   echo $ac_n "checking for logl declaration""... $ac_c" 1>&6
-echo "configure:9812: checking for logl declaration" >&5
+echo "configure:9818: checking for logl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_logl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9822,14 +9828,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9826 "configure"
+#line 9832 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  logl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9833: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9839: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_logl_use=yes
 else
@@ -9854,12 +9860,12 @@ fi
     for ac_func in logl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9858: checking for $ac_func" >&5
+echo "configure:9864: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9863 "configure"
+#line 9869 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9882,7 +9888,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9886: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9892: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -9910,7 +9916,7 @@ done
 
   
   echo $ac_n "checking for log10l declaration""... $ac_c" 1>&6
-echo "configure:9914: checking for log10l declaration" >&5
+echo "configure:9920: checking for log10l declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_log10l_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9924,14 +9930,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 9928 "configure"
+#line 9934 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  log10l(0);
 ; return 0; }
 EOF
-if { (eval echo configure:9935: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9941: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_log10l_use=yes
 else
@@ -9956,12 +9962,12 @@ fi
     for ac_func in log10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:9960: checking for $ac_func" >&5
+echo "configure:9966: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9965 "configure"
+#line 9971 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -9984,7 +9990,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:9988: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:9994: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10012,7 +10018,7 @@ done
 
   
   echo $ac_n "checking for modfl declaration""... $ac_c" 1>&6
-echo "configure:10016: checking for modfl declaration" >&5
+echo "configure:10022: checking for modfl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_modfl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10026,14 +10032,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10030 "configure"
+#line 10036 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  modfl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10037: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10043: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_modfl_use=yes
 else
@@ -10058,12 +10064,12 @@ fi
     for ac_func in modfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10062: checking for $ac_func" >&5
+echo "configure:10068: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10067 "configure"
+#line 10073 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10086,7 +10092,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10090: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10096: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10114,7 +10120,7 @@ done
 
   
   echo $ac_n "checking for powl declaration""... $ac_c" 1>&6
-echo "configure:10118: checking for powl declaration" >&5
+echo "configure:10124: checking for powl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_powl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10128,14 +10134,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10132 "configure"
+#line 10138 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  powl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10139: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10145: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_powl_use=yes
 else
@@ -10160,12 +10166,12 @@ fi
     for ac_func in powl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10164: checking for $ac_func" >&5
+echo "configure:10170: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10169 "configure"
+#line 10175 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10188,7 +10194,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10192: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10198: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10216,7 +10222,7 @@ done
 
   
   echo $ac_n "checking for sinl declaration""... $ac_c" 1>&6
-echo "configure:10220: checking for sinl declaration" >&5
+echo "configure:10226: checking for sinl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sinl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10230,14 +10236,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10234 "configure"
+#line 10240 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10241: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10247: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sinl_use=yes
 else
@@ -10262,12 +10268,12 @@ fi
     for ac_func in sinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10266: checking for $ac_func" >&5
+echo "configure:10272: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10271 "configure"
+#line 10277 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10290,7 +10296,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10294: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10318,7 +10324,7 @@ done
 
   
   echo $ac_n "checking for sinhl declaration""... $ac_c" 1>&6
-echo "configure:10322: checking for sinhl declaration" >&5
+echo "configure:10328: checking for sinhl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sinhl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10332,14 +10338,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10336 "configure"
+#line 10342 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sinhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10343: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10349: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sinhl_use=yes
 else
@@ -10364,12 +10370,12 @@ fi
     for ac_func in sinhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10368: checking for $ac_func" >&5
+echo "configure:10374: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10373 "configure"
+#line 10379 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10392,7 +10398,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10396: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10402: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10420,7 +10426,7 @@ done
 
   
   echo $ac_n "checking for sqrtl declaration""... $ac_c" 1>&6
-echo "configure:10424: checking for sqrtl declaration" >&5
+echo "configure:10430: checking for sqrtl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sqrtl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10434,14 +10440,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10438 "configure"
+#line 10444 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10445: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10451: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sqrtl_use=yes
 else
@@ -10466,12 +10472,12 @@ fi
     for ac_func in sqrtl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10470: checking for $ac_func" >&5
+echo "configure:10476: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10475 "configure"
+#line 10481 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10494,7 +10500,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10498: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10504: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10522,7 +10528,7 @@ done
 
   
   echo $ac_n "checking for tanl declaration""... $ac_c" 1>&6
-echo "configure:10526: checking for tanl declaration" >&5
+echo "configure:10532: checking for tanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_tanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10536,14 +10542,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10540 "configure"
+#line 10546 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10547: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10553: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_tanl_use=yes
 else
@@ -10568,12 +10574,12 @@ fi
     for ac_func in tanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10572: checking for $ac_func" >&5
+echo "configure:10578: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10577 "configure"
+#line 10583 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10596,7 +10602,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10600: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10606: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10624,7 +10630,7 @@ done
 
   
   echo $ac_n "checking for tanhl declaration""... $ac_c" 1>&6
-echo "configure:10628: checking for tanhl declaration" >&5
+echo "configure:10634: checking for tanhl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_tanhl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10638,14 +10644,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10642 "configure"
+#line 10648 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  tanhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10649: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10655: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_tanhl_use=yes
 else
@@ -10670,12 +10676,12 @@ fi
     for ac_func in tanhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10674: checking for $ac_func" >&5
+echo "configure:10680: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10679 "configure"
+#line 10685 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10698,7 +10704,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10702: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10708: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10726,7 +10732,7 @@ done
 
   
   echo $ac_n "checking for sincosl declaration""... $ac_c" 1>&6
-echo "configure:10730: checking for sincosl declaration" >&5
+echo "configure:10736: checking for sincosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_sincosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10740,14 +10746,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10744 "configure"
+#line 10750 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  sincosl(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:10751: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10757: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_sincosl_use=yes
 else
@@ -10772,12 +10778,12 @@ fi
     for ac_func in sincosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10776: checking for $ac_func" >&5
+echo "configure:10782: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10781 "configure"
+#line 10787 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10800,7 +10806,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10804: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10810: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10828,7 +10834,7 @@ done
 
   
   echo $ac_n "checking for finitel declaration""... $ac_c" 1>&6
-echo "configure:10832: checking for finitel declaration" >&5
+echo "configure:10838: checking for finitel declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func_finitel_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10842,14 +10848,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10846 "configure"
+#line 10852 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  finitel(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10853: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10859: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func_finitel_use=yes
 else
@@ -10874,12 +10880,12 @@ fi
     for ac_func in finitel
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10878: checking for $ac_func" >&5
+echo "configure:10884: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10883 "configure"
+#line 10889 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -10902,7 +10908,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:10906: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10912: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -10931,7 +10937,7 @@ done
 
             
   echo $ac_n "checking for _isinf declaration""... $ac_c" 1>&6
-echo "configure:10935: checking for _isinf declaration" >&5
+echo "configure:10941: checking for _isinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10945,14 +10951,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 10949 "configure"
+#line 10955 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:10956: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10962: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isinf_use=yes
 else
@@ -10977,12 +10983,12 @@ fi
     for ac_func in _isinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:10981: checking for $ac_func" >&5
+echo "configure:10987: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10986 "configure"
+#line 10992 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11005,7 +11011,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11009: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11015: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11033,7 +11039,7 @@ done
 
   
   echo $ac_n "checking for _isnan declaration""... $ac_c" 1>&6
-echo "configure:11037: checking for _isnan declaration" >&5
+echo "configure:11043: checking for _isnan declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isnan_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11047,14 +11053,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11051 "configure"
+#line 11057 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnan(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11064: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isnan_use=yes
 else
@@ -11079,12 +11085,12 @@ fi
     for ac_func in _isnan
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11083: checking for $ac_func" >&5
+echo "configure:11089: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11088 "configure"
+#line 11094 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11107,7 +11113,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11111: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11135,7 +11141,7 @@ done
 
   
   echo $ac_n "checking for _finite declaration""... $ac_c" 1>&6
-echo "configure:11139: checking for _finite declaration" >&5
+echo "configure:11145: checking for _finite declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__finite_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11149,14 +11155,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11153 "configure"
+#line 11159 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finite(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11160: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11166: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__finite_use=yes
 else
@@ -11181,12 +11187,12 @@ fi
     for ac_func in _finite
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11185: checking for $ac_func" >&5
+echo "configure:11191: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11190 "configure"
+#line 11196 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11209,7 +11215,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11213: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11219: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11237,7 +11243,7 @@ done
 
   
   echo $ac_n "checking for _copysign declaration""... $ac_c" 1>&6
-echo "configure:11241: checking for _copysign declaration" >&5
+echo "configure:11247: checking for _copysign declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__copysign_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11251,14 +11257,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11255 "configure"
+#line 11261 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _copysign(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:11262: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__copysign_use=yes
 else
@@ -11283,12 +11289,12 @@ fi
     for ac_func in _copysign
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11287: checking for $ac_func" >&5
+echo "configure:11293: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11292 "configure"
+#line 11298 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11311,7 +11317,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11315: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11321: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11339,7 +11345,7 @@ done
 
   
   echo $ac_n "checking for _sincos declaration""... $ac_c" 1>&6
-echo "configure:11343: checking for _sincos declaration" >&5
+echo "configure:11349: checking for _sincos declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sincos_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11353,14 +11359,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11357 "configure"
+#line 11363 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincos(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:11364: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11370: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sincos_use=yes
 else
@@ -11385,12 +11391,12 @@ fi
     for ac_func in _sincos
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11389: checking for $ac_func" >&5
+echo "configure:11395: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11394 "configure"
+#line 11400 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11413,7 +11419,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11417: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11441,7 +11447,7 @@ done
 
   
   echo $ac_n "checking for _fpclass declaration""... $ac_c" 1>&6
-echo "configure:11445: checking for _fpclass declaration" >&5
+echo "configure:11451: checking for _fpclass declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__fpclass_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11455,14 +11461,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11459 "configure"
+#line 11465 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11466: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11472: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__fpclass_use=yes
 else
@@ -11487,12 +11493,12 @@ fi
     for ac_func in _fpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11491: checking for $ac_func" >&5
+echo "configure:11497: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11496 "configure"
+#line 11502 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11515,7 +11521,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11525: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11543,7 +11549,7 @@ done
 
   
   echo $ac_n "checking for _qfpclass declaration""... $ac_c" 1>&6
-echo "configure:11547: checking for _qfpclass declaration" >&5
+echo "configure:11553: checking for _qfpclass declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__qfpclass_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11557,14 +11563,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11561 "configure"
+#line 11567 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _qfpclass(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11568: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11574: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__qfpclass_use=yes
 else
@@ -11589,12 +11595,12 @@ fi
     for ac_func in _qfpclass
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11593: checking for $ac_func" >&5
+echo "configure:11599: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11598 "configure"
+#line 11604 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11617,7 +11623,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11627: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11646,7 +11652,7 @@ done
 
     
   echo $ac_n "checking for _isnanf declaration""... $ac_c" 1>&6
-echo "configure:11650: checking for _isnanf declaration" >&5
+echo "configure:11656: checking for _isnanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isnanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11660,14 +11666,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11664 "configure"
+#line 11670 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11671: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11677: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isnanf_use=yes
 else
@@ -11692,12 +11698,12 @@ fi
     for ac_func in _isnanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11696: checking for $ac_func" >&5
+echo "configure:11702: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11701 "configure"
+#line 11707 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11720,7 +11726,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11724: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11730: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11748,7 +11754,7 @@ done
 
   
   echo $ac_n "checking for _isinff declaration""... $ac_c" 1>&6
-echo "configure:11752: checking for _isinff declaration" >&5
+echo "configure:11758: checking for _isinff declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isinff_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11762,14 +11768,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11766 "configure"
+#line 11772 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinff(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11773: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11779: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isinff_use=yes
 else
@@ -11794,12 +11800,12 @@ fi
     for ac_func in _isinff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11798: checking for $ac_func" >&5
+echo "configure:11804: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11803 "configure"
+#line 11809 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11822,7 +11828,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11826: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11832: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11850,7 +11856,7 @@ done
 
   
   echo $ac_n "checking for _acosf declaration""... $ac_c" 1>&6
-echo "configure:11854: checking for _acosf declaration" >&5
+echo "configure:11860: checking for _acosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__acosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11864,14 +11870,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11868 "configure"
+#line 11874 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _acosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11875: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11881: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__acosf_use=yes
 else
@@ -11896,12 +11902,12 @@ fi
     for ac_func in _acosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:11900: checking for $ac_func" >&5
+echo "configure:11906: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 11905 "configure"
+#line 11911 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -11924,7 +11930,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:11928: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:11934: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -11952,7 +11958,7 @@ done
 
   
   echo $ac_n "checking for _asinf declaration""... $ac_c" 1>&6
-echo "configure:11956: checking for _asinf declaration" >&5
+echo "configure:11962: checking for _asinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__asinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -11966,14 +11972,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 11970 "configure"
+#line 11976 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _asinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:11977: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:11983: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__asinf_use=yes
 else
@@ -11998,12 +12004,12 @@ fi
     for ac_func in _asinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12002: checking for $ac_func" >&5
+echo "configure:12008: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12007 "configure"
+#line 12013 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12026,7 +12032,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12030: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12036: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12054,7 +12060,7 @@ done
 
   
   echo $ac_n "checking for _atanf declaration""... $ac_c" 1>&6
-echo "configure:12058: checking for _atanf declaration" >&5
+echo "configure:12064: checking for _atanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__atanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12068,14 +12074,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12072 "configure"
+#line 12078 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12079: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12085: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__atanf_use=yes
 else
@@ -12100,12 +12106,12 @@ fi
     for ac_func in _atanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12104: checking for $ac_func" >&5
+echo "configure:12110: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12109 "configure"
+#line 12115 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12128,7 +12134,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12132: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12138: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12156,7 +12162,7 @@ done
 
   
   echo $ac_n "checking for _atan2f declaration""... $ac_c" 1>&6
-echo "configure:12160: checking for _atan2f declaration" >&5
+echo "configure:12166: checking for _atan2f declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__atan2f_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12170,14 +12176,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12174 "configure"
+#line 12180 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atan2f(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12181: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12187: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__atan2f_use=yes
 else
@@ -12202,12 +12208,12 @@ fi
     for ac_func in _atan2f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12206: checking for $ac_func" >&5
+echo "configure:12212: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12211 "configure"
+#line 12217 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12230,7 +12236,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12234: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12240: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12258,7 +12264,7 @@ done
 
   
   echo $ac_n "checking for _ceilf declaration""... $ac_c" 1>&6
-echo "configure:12262: checking for _ceilf declaration" >&5
+echo "configure:12268: checking for _ceilf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__ceilf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12272,14 +12278,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12276 "configure"
+#line 12282 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ceilf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12283: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12289: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__ceilf_use=yes
 else
@@ -12304,12 +12310,12 @@ fi
     for ac_func in _ceilf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12308: checking for $ac_func" >&5
+echo "configure:12314: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12313 "configure"
+#line 12319 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12332,7 +12338,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12342: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12360,7 +12366,7 @@ done
 
   
   echo $ac_n "checking for _cosf declaration""... $ac_c" 1>&6
-echo "configure:12364: checking for _cosf declaration" >&5
+echo "configure:12370: checking for _cosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__cosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12374,14 +12380,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12378 "configure"
+#line 12384 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _cosf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12385: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12391: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__cosf_use=yes
 else
@@ -12406,12 +12412,12 @@ fi
     for ac_func in _cosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12410: checking for $ac_func" >&5
+echo "configure:12416: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12415 "configure"
+#line 12421 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12434,7 +12440,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12438: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12444: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12462,7 +12468,7 @@ done
 
   
   echo $ac_n "checking for _coshf declaration""... $ac_c" 1>&6
-echo "configure:12466: checking for _coshf declaration" >&5
+echo "configure:12472: checking for _coshf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__coshf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12476,14 +12482,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12480 "configure"
+#line 12486 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _coshf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12487: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12493: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__coshf_use=yes
 else
@@ -12508,12 +12514,12 @@ fi
     for ac_func in _coshf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12512: checking for $ac_func" >&5
+echo "configure:12518: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12517 "configure"
+#line 12523 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12536,7 +12542,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12540: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12546: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12564,7 +12570,7 @@ done
 
   
   echo $ac_n "checking for _expf declaration""... $ac_c" 1>&6
-echo "configure:12568: checking for _expf declaration" >&5
+echo "configure:12574: checking for _expf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__expf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12578,14 +12584,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12582 "configure"
+#line 12588 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _expf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12589: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12595: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__expf_use=yes
 else
@@ -12610,12 +12616,12 @@ fi
     for ac_func in _expf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12614: checking for $ac_func" >&5
+echo "configure:12620: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12619 "configure"
+#line 12625 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12638,7 +12644,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12642: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12648: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12666,7 +12672,7 @@ done
 
   
   echo $ac_n "checking for _fabsf declaration""... $ac_c" 1>&6
-echo "configure:12670: checking for _fabsf declaration" >&5
+echo "configure:12676: checking for _fabsf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__fabsf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12680,14 +12686,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12684 "configure"
+#line 12690 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fabsf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12691: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12697: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__fabsf_use=yes
 else
@@ -12712,12 +12718,12 @@ fi
     for ac_func in _fabsf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12716: checking for $ac_func" >&5
+echo "configure:12722: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12721 "configure"
+#line 12727 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12740,7 +12746,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12744: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12750: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12768,7 +12774,7 @@ done
 
   
   echo $ac_n "checking for _floorf declaration""... $ac_c" 1>&6
-echo "configure:12772: checking for _floorf declaration" >&5
+echo "configure:12778: checking for _floorf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__floorf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12782,14 +12788,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12786 "configure"
+#line 12792 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _floorf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:12793: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12799: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__floorf_use=yes
 else
@@ -12814,12 +12820,12 @@ fi
     for ac_func in _floorf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12818: checking for $ac_func" >&5
+echo "configure:12824: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12823 "configure"
+#line 12829 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12842,7 +12848,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12846: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12852: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12870,7 +12876,7 @@ done
 
   
   echo $ac_n "checking for _fmodf declaration""... $ac_c" 1>&6
-echo "configure:12874: checking for _fmodf declaration" >&5
+echo "configure:12880: checking for _fmodf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__fmodf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12884,14 +12890,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12888 "configure"
+#line 12894 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fmodf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12895: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:12901: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__fmodf_use=yes
 else
@@ -12916,12 +12922,12 @@ fi
     for ac_func in _fmodf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:12920: checking for $ac_func" >&5
+echo "configure:12926: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 12925 "configure"
+#line 12931 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -12944,7 +12950,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:12948: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:12954: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -12972,7 +12978,7 @@ done
 
   
   echo $ac_n "checking for _frexpf declaration""... $ac_c" 1>&6
-echo "configure:12976: checking for _frexpf declaration" >&5
+echo "configure:12982: checking for _frexpf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__frexpf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -12986,14 +12992,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 12990 "configure"
+#line 12996 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _frexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:12997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13003: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__frexpf_use=yes
 else
@@ -13018,12 +13024,12 @@ fi
     for ac_func in _frexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13022: checking for $ac_func" >&5
+echo "configure:13028: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13027 "configure"
+#line 13033 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13046,7 +13052,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13050: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13056: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13074,7 +13080,7 @@ done
 
   
   echo $ac_n "checking for _ldexpf declaration""... $ac_c" 1>&6
-echo "configure:13078: checking for _ldexpf declaration" >&5
+echo "configure:13084: checking for _ldexpf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__ldexpf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13088,14 +13094,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13092 "configure"
+#line 13098 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ldexpf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:13099: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13105: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__ldexpf_use=yes
 else
@@ -13120,12 +13126,12 @@ fi
     for ac_func in _ldexpf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13124: checking for $ac_func" >&5
+echo "configure:13130: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13129 "configure"
+#line 13135 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13148,7 +13154,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13152: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13158: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13176,7 +13182,7 @@ done
 
   
   echo $ac_n "checking for _logf declaration""... $ac_c" 1>&6
-echo "configure:13180: checking for _logf declaration" >&5
+echo "configure:13186: checking for _logf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__logf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13190,14 +13196,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13194 "configure"
+#line 13200 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _logf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13201: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13207: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__logf_use=yes
 else
@@ -13222,12 +13228,12 @@ fi
     for ac_func in _logf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13226: checking for $ac_func" >&5
+echo "configure:13232: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13231 "configure"
+#line 13237 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13250,7 +13256,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13254: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13260: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13278,7 +13284,7 @@ done
 
   
   echo $ac_n "checking for _log10f declaration""... $ac_c" 1>&6
-echo "configure:13282: checking for _log10f declaration" >&5
+echo "configure:13288: checking for _log10f declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__log10f_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13292,14 +13298,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13296 "configure"
+#line 13302 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _log10f(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13303: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13309: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__log10f_use=yes
 else
@@ -13324,12 +13330,12 @@ fi
     for ac_func in _log10f
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13328: checking for $ac_func" >&5
+echo "configure:13334: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13333 "configure"
+#line 13339 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13352,7 +13358,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13362: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13380,7 +13386,7 @@ done
 
   
   echo $ac_n "checking for _modff declaration""... $ac_c" 1>&6
-echo "configure:13384: checking for _modff declaration" >&5
+echo "configure:13390: checking for _modff declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__modff_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13394,14 +13400,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13398 "configure"
+#line 13404 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _modff(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:13405: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13411: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__modff_use=yes
 else
@@ -13426,12 +13432,12 @@ fi
     for ac_func in _modff
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13430: checking for $ac_func" >&5
+echo "configure:13436: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13435 "configure"
+#line 13441 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13454,7 +13460,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13464: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13482,7 +13488,7 @@ done
 
   
   echo $ac_n "checking for _powf declaration""... $ac_c" 1>&6
-echo "configure:13486: checking for _powf declaration" >&5
+echo "configure:13492: checking for _powf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__powf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13496,14 +13502,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13500 "configure"
+#line 13506 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _powf(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:13507: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13513: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__powf_use=yes
 else
@@ -13528,12 +13534,12 @@ fi
     for ac_func in _powf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13532: checking for $ac_func" >&5
+echo "configure:13538: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13537 "configure"
+#line 13543 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13556,7 +13562,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13560: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13566: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13584,7 +13590,7 @@ done
 
   
   echo $ac_n "checking for _sinf declaration""... $ac_c" 1>&6
-echo "configure:13588: checking for _sinf declaration" >&5
+echo "configure:13594: checking for _sinf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sinf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13598,14 +13604,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13602 "configure"
+#line 13608 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13609: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13615: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sinf_use=yes
 else
@@ -13630,12 +13636,12 @@ fi
     for ac_func in _sinf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13634: checking for $ac_func" >&5
+echo "configure:13640: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13639 "configure"
+#line 13645 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13658,7 +13664,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13662: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13668: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13686,7 +13692,7 @@ done
 
   
   echo $ac_n "checking for _sinhf declaration""... $ac_c" 1>&6
-echo "configure:13690: checking for _sinhf declaration" >&5
+echo "configure:13696: checking for _sinhf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sinhf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13700,14 +13706,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13704 "configure"
+#line 13710 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13711: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13717: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sinhf_use=yes
 else
@@ -13732,12 +13738,12 @@ fi
     for ac_func in _sinhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13736: checking for $ac_func" >&5
+echo "configure:13742: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13741 "configure"
+#line 13747 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13760,7 +13766,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13764: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13770: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13788,7 +13794,7 @@ done
 
   
   echo $ac_n "checking for _sqrtf declaration""... $ac_c" 1>&6
-echo "configure:13792: checking for _sqrtf declaration" >&5
+echo "configure:13798: checking for _sqrtf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sqrtf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13802,14 +13808,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13806 "configure"
+#line 13812 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sqrtf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13813: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13819: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sqrtf_use=yes
 else
@@ -13834,12 +13840,12 @@ fi
     for ac_func in _sqrtf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13838: checking for $ac_func" >&5
+echo "configure:13844: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13843 "configure"
+#line 13849 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13862,7 +13868,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13866: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13872: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13890,7 +13896,7 @@ done
 
   
   echo $ac_n "checking for _tanf declaration""... $ac_c" 1>&6
-echo "configure:13894: checking for _tanf declaration" >&5
+echo "configure:13900: checking for _tanf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__tanf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -13904,14 +13910,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 13908 "configure"
+#line 13914 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:13915: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:13921: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__tanf_use=yes
 else
@@ -13936,12 +13942,12 @@ fi
     for ac_func in _tanf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:13940: checking for $ac_func" >&5
+echo "configure:13946: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 13945 "configure"
+#line 13951 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -13964,7 +13970,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:13968: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:13974: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -13992,7 +13998,7 @@ done
 
   
   echo $ac_n "checking for _tanhf declaration""... $ac_c" 1>&6
-echo "configure:13996: checking for _tanhf declaration" >&5
+echo "configure:14002: checking for _tanhf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__tanhf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14006,14 +14012,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14010 "configure"
+#line 14016 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanhf(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14017: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14023: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__tanhf_use=yes
 else
@@ -14038,12 +14044,12 @@ fi
     for ac_func in _tanhf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14042: checking for $ac_func" >&5
+echo "configure:14048: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14047 "configure"
+#line 14053 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14066,7 +14072,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14070: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14094,7 +14100,7 @@ done
 
   
   echo $ac_n "checking for _sincosf declaration""... $ac_c" 1>&6
-echo "configure:14098: checking for _sincosf declaration" >&5
+echo "configure:14104: checking for _sincosf declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sincosf_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14108,14 +14114,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14112 "configure"
+#line 14118 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincosf(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14119: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14125: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sincosf_use=yes
 else
@@ -14140,12 +14146,12 @@ fi
     for ac_func in _sincosf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14144: checking for $ac_func" >&5
+echo "configure:14150: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14149 "configure"
+#line 14155 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14168,7 +14174,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14172: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14178: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14196,7 +14202,7 @@ done
 
   
   echo $ac_n "checking for _finitef declaration""... $ac_c" 1>&6
-echo "configure:14200: checking for _finitef declaration" >&5
+echo "configure:14206: checking for _finitef declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__finitef_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14210,14 +14216,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14214 "configure"
+#line 14220 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finitef(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14221: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14227: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__finitef_use=yes
 else
@@ -14242,12 +14248,12 @@ fi
     for ac_func in _finitef
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14246: checking for $ac_func" >&5
+echo "configure:14252: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14251 "configure"
+#line 14257 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14270,7 +14276,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14274: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14280: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14299,7 +14305,7 @@ done
 
     
   echo $ac_n "checking for _isnanl declaration""... $ac_c" 1>&6
-echo "configure:14303: checking for _isnanl declaration" >&5
+echo "configure:14309: checking for _isnanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isnanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14313,14 +14319,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14317 "configure"
+#line 14323 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isnanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14324: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14330: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isnanl_use=yes
 else
@@ -14345,12 +14351,12 @@ fi
     for ac_func in _isnanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14349: checking for $ac_func" >&5
+echo "configure:14355: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14354 "configure"
+#line 14360 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14373,7 +14379,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14377: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14383: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14401,7 +14407,7 @@ done
 
   
   echo $ac_n "checking for _isinfl declaration""... $ac_c" 1>&6
-echo "configure:14405: checking for _isinfl declaration" >&5
+echo "configure:14411: checking for _isinfl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__isinfl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14415,14 +14421,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14419 "configure"
+#line 14425 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _isinfl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14426: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14432: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__isinfl_use=yes
 else
@@ -14447,12 +14453,12 @@ fi
     for ac_func in _isinfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14451: checking for $ac_func" >&5
+echo "configure:14457: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14456 "configure"
+#line 14462 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14475,7 +14481,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14479: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14485: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14503,7 +14509,7 @@ done
 
   
   echo $ac_n "checking for _copysignl declaration""... $ac_c" 1>&6
-echo "configure:14507: checking for _copysignl declaration" >&5
+echo "configure:14513: checking for _copysignl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__copysignl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14517,14 +14523,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14521 "configure"
+#line 14527 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _copysignl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14528: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14534: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__copysignl_use=yes
 else
@@ -14549,12 +14555,12 @@ fi
     for ac_func in _copysignl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14553: checking for $ac_func" >&5
+echo "configure:14559: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14558 "configure"
+#line 14564 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14577,7 +14583,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14581: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14587: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14605,7 +14611,7 @@ done
 
   
   echo $ac_n "checking for _acosl declaration""... $ac_c" 1>&6
-echo "configure:14609: checking for _acosl declaration" >&5
+echo "configure:14615: checking for _acosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__acosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14619,14 +14625,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14623 "configure"
+#line 14629 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _acosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14630: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14636: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__acosl_use=yes
 else
@@ -14651,12 +14657,12 @@ fi
     for ac_func in _acosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14655: checking for $ac_func" >&5
+echo "configure:14661: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14660 "configure"
+#line 14666 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14679,7 +14685,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14689: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14707,7 +14713,7 @@ done
 
   
   echo $ac_n "checking for _asinl declaration""... $ac_c" 1>&6
-echo "configure:14711: checking for _asinl declaration" >&5
+echo "configure:14717: checking for _asinl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__asinl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14721,14 +14727,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14725 "configure"
+#line 14731 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _asinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14732: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14738: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__asinl_use=yes
 else
@@ -14753,12 +14759,12 @@ fi
     for ac_func in _asinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14757: checking for $ac_func" >&5
+echo "configure:14763: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14762 "configure"
+#line 14768 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14781,7 +14787,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14809,7 +14815,7 @@ done
 
   
   echo $ac_n "checking for _atanl declaration""... $ac_c" 1>&6
-echo "configure:14813: checking for _atanl declaration" >&5
+echo "configure:14819: checking for _atanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__atanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14823,14 +14829,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14827 "configure"
+#line 14833 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:14834: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14840: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__atanl_use=yes
 else
@@ -14855,12 +14861,12 @@ fi
     for ac_func in _atanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14859: checking for $ac_func" >&5
+echo "configure:14865: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14864 "configure"
+#line 14870 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14883,7 +14889,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14887: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14893: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -14911,7 +14917,7 @@ done
 
   
   echo $ac_n "checking for _atan2l declaration""... $ac_c" 1>&6
-echo "configure:14915: checking for _atan2l declaration" >&5
+echo "configure:14921: checking for _atan2l declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__atan2l_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -14925,14 +14931,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 14929 "configure"
+#line 14935 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _atan2l(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:14936: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:14942: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__atan2l_use=yes
 else
@@ -14957,12 +14963,12 @@ fi
     for ac_func in _atan2l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:14961: checking for $ac_func" >&5
+echo "configure:14967: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 14966 "configure"
+#line 14972 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -14985,7 +14991,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:14989: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:14995: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15013,7 +15019,7 @@ done
 
   
   echo $ac_n "checking for _ceill declaration""... $ac_c" 1>&6
-echo "configure:15017: checking for _ceill declaration" >&5
+echo "configure:15023: checking for _ceill declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__ceill_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15027,14 +15033,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15031 "configure"
+#line 15037 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ceill(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15038: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15044: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__ceill_use=yes
 else
@@ -15059,12 +15065,12 @@ fi
     for ac_func in _ceill
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15063: checking for $ac_func" >&5
+echo "configure:15069: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15068 "configure"
+#line 15074 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15087,7 +15093,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15091: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15097: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15115,7 +15121,7 @@ done
 
   
   echo $ac_n "checking for _cosl declaration""... $ac_c" 1>&6
-echo "configure:15119: checking for _cosl declaration" >&5
+echo "configure:15125: checking for _cosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__cosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15129,14 +15135,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15133 "configure"
+#line 15139 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _cosl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15140: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15146: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__cosl_use=yes
 else
@@ -15161,12 +15167,12 @@ fi
     for ac_func in _cosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15165: checking for $ac_func" >&5
+echo "configure:15171: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15170 "configure"
+#line 15176 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15189,7 +15195,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15193: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15199: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15217,7 +15223,7 @@ done
 
   
   echo $ac_n "checking for _coshl declaration""... $ac_c" 1>&6
-echo "configure:15221: checking for _coshl declaration" >&5
+echo "configure:15227: checking for _coshl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__coshl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15231,14 +15237,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15235 "configure"
+#line 15241 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _coshl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15242: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15248: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__coshl_use=yes
 else
@@ -15263,12 +15269,12 @@ fi
     for ac_func in _coshl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15267: checking for $ac_func" >&5
+echo "configure:15273: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15272 "configure"
+#line 15278 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15291,7 +15297,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15295: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15301: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15319,7 +15325,7 @@ done
 
   
   echo $ac_n "checking for _expl declaration""... $ac_c" 1>&6
-echo "configure:15323: checking for _expl declaration" >&5
+echo "configure:15329: checking for _expl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__expl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15333,14 +15339,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15337 "configure"
+#line 15343 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _expl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15344: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15350: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__expl_use=yes
 else
@@ -15365,12 +15371,12 @@ fi
     for ac_func in _expl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15369: checking for $ac_func" >&5
+echo "configure:15375: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15374 "configure"
+#line 15380 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15393,7 +15399,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15397: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15403: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15421,7 +15427,7 @@ done
 
   
   echo $ac_n "checking for _fabsl declaration""... $ac_c" 1>&6
-echo "configure:15425: checking for _fabsl declaration" >&5
+echo "configure:15431: checking for _fabsl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__fabsl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15435,14 +15441,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15439 "configure"
+#line 15445 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fabsl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15446: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15452: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__fabsl_use=yes
 else
@@ -15467,12 +15473,12 @@ fi
     for ac_func in _fabsl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15471: checking for $ac_func" >&5
+echo "configure:15477: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15476 "configure"
+#line 15482 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15495,7 +15501,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15499: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15505: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15523,7 +15529,7 @@ done
 
   
   echo $ac_n "checking for _floorl declaration""... $ac_c" 1>&6
-echo "configure:15527: checking for _floorl declaration" >&5
+echo "configure:15533: checking for _floorl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__floorl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15537,14 +15543,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15541 "configure"
+#line 15547 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _floorl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15548: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15554: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__floorl_use=yes
 else
@@ -15569,12 +15575,12 @@ fi
     for ac_func in _floorl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15573: checking for $ac_func" >&5
+echo "configure:15579: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15578 "configure"
+#line 15584 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15597,7 +15603,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15601: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15607: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15625,7 +15631,7 @@ done
 
   
   echo $ac_n "checking for _fmodl declaration""... $ac_c" 1>&6
-echo "configure:15629: checking for _fmodl declaration" >&5
+echo "configure:15635: checking for _fmodl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__fmodl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15639,14 +15645,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15643 "configure"
+#line 15649 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _fmodl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:15650: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15656: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__fmodl_use=yes
 else
@@ -15671,12 +15677,12 @@ fi
     for ac_func in _fmodl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15675: checking for $ac_func" >&5
+echo "configure:15681: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15680 "configure"
+#line 15686 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15699,7 +15705,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15703: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15709: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15727,7 +15733,7 @@ done
 
   
   echo $ac_n "checking for _frexpl declaration""... $ac_c" 1>&6
-echo "configure:15731: checking for _frexpl declaration" >&5
+echo "configure:15737: checking for _frexpl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__frexpl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15741,14 +15747,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15745 "configure"
+#line 15751 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _frexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:15752: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15758: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__frexpl_use=yes
 else
@@ -15773,12 +15779,12 @@ fi
     for ac_func in _frexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15777: checking for $ac_func" >&5
+echo "configure:15783: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15782 "configure"
+#line 15788 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15801,7 +15807,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15805: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15811: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15829,7 +15835,7 @@ done
 
   
   echo $ac_n "checking for _ldexpl declaration""... $ac_c" 1>&6
-echo "configure:15833: checking for _ldexpl declaration" >&5
+echo "configure:15839: checking for _ldexpl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__ldexpl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15843,14 +15849,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15847 "configure"
+#line 15853 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _ldexpl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:15854: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15860: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__ldexpl_use=yes
 else
@@ -15875,12 +15881,12 @@ fi
     for ac_func in _ldexpl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15879: checking for $ac_func" >&5
+echo "configure:15885: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15884 "configure"
+#line 15890 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -15903,7 +15909,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:15907: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:15913: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -15931,7 +15937,7 @@ done
 
   
   echo $ac_n "checking for _logl declaration""... $ac_c" 1>&6
-echo "configure:15935: checking for _logl declaration" >&5
+echo "configure:15941: checking for _logl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__logl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -15945,14 +15951,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 15949 "configure"
+#line 15955 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _logl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:15956: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:15962: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__logl_use=yes
 else
@@ -15977,12 +15983,12 @@ fi
     for ac_func in _logl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:15981: checking for $ac_func" >&5
+echo "configure:15987: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 15986 "configure"
+#line 15992 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16005,7 +16011,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16009: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16015: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16033,7 +16039,7 @@ done
 
   
   echo $ac_n "checking for _log10l declaration""... $ac_c" 1>&6
-echo "configure:16037: checking for _log10l declaration" >&5
+echo "configure:16043: checking for _log10l declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__log10l_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16047,14 +16053,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16051 "configure"
+#line 16057 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _log10l(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16064: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__log10l_use=yes
 else
@@ -16079,12 +16085,12 @@ fi
     for ac_func in _log10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16083: checking for $ac_func" >&5
+echo "configure:16089: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16088 "configure"
+#line 16094 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16107,7 +16113,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16111: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16135,7 +16141,7 @@ done
 
   
   echo $ac_n "checking for _modfl declaration""... $ac_c" 1>&6
-echo "configure:16139: checking for _modfl declaration" >&5
+echo "configure:16145: checking for _modfl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__modfl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16149,14 +16155,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16153 "configure"
+#line 16159 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _modfl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:16160: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16166: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__modfl_use=yes
 else
@@ -16181,12 +16187,12 @@ fi
     for ac_func in _modfl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16185: checking for $ac_func" >&5
+echo "configure:16191: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16190 "configure"
+#line 16196 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16209,7 +16215,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16213: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16219: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16237,7 +16243,7 @@ done
 
   
   echo $ac_n "checking for _powl declaration""... $ac_c" 1>&6
-echo "configure:16241: checking for _powl declaration" >&5
+echo "configure:16247: checking for _powl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__powl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16251,14 +16257,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16255 "configure"
+#line 16261 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _powl(0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:16262: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__powl_use=yes
 else
@@ -16283,12 +16289,12 @@ fi
     for ac_func in _powl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16287: checking for $ac_func" >&5
+echo "configure:16293: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16292 "configure"
+#line 16298 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16311,7 +16317,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16315: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16321: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16339,7 +16345,7 @@ done
 
   
   echo $ac_n "checking for _sinl declaration""... $ac_c" 1>&6
-echo "configure:16343: checking for _sinl declaration" >&5
+echo "configure:16349: checking for _sinl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sinl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16353,14 +16359,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16357 "configure"
+#line 16363 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16364: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16370: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sinl_use=yes
 else
@@ -16385,12 +16391,12 @@ fi
     for ac_func in _sinl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16389: checking for $ac_func" >&5
+echo "configure:16395: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16394 "configure"
+#line 16400 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16413,7 +16419,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16417: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16441,7 +16447,7 @@ done
 
   
   echo $ac_n "checking for _sinhl declaration""... $ac_c" 1>&6
-echo "configure:16445: checking for _sinhl declaration" >&5
+echo "configure:16451: checking for _sinhl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sinhl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16455,14 +16461,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16459 "configure"
+#line 16465 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sinhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16466: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16472: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sinhl_use=yes
 else
@@ -16487,12 +16493,12 @@ fi
     for ac_func in _sinhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16491: checking for $ac_func" >&5
+echo "configure:16497: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16496 "configure"
+#line 16502 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16515,7 +16521,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16525: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16543,7 +16549,7 @@ done
 
   
   echo $ac_n "checking for _sqrtl declaration""... $ac_c" 1>&6
-echo "configure:16547: checking for _sqrtl declaration" >&5
+echo "configure:16553: checking for _sqrtl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sqrtl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16557,14 +16563,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16561 "configure"
+#line 16567 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sqrtl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16568: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16574: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sqrtl_use=yes
 else
@@ -16589,12 +16595,12 @@ fi
     for ac_func in _sqrtl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16593: checking for $ac_func" >&5
+echo "configure:16599: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16598 "configure"
+#line 16604 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16617,7 +16623,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16621: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16627: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16645,7 +16651,7 @@ done
 
   
   echo $ac_n "checking for _tanl declaration""... $ac_c" 1>&6
-echo "configure:16649: checking for _tanl declaration" >&5
+echo "configure:16655: checking for _tanl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__tanl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16659,14 +16665,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16663 "configure"
+#line 16669 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16670: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16676: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__tanl_use=yes
 else
@@ -16691,12 +16697,12 @@ fi
     for ac_func in _tanl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16695: checking for $ac_func" >&5
+echo "configure:16701: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16700 "configure"
+#line 16706 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16719,7 +16725,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16723: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16747,7 +16753,7 @@ done
 
   
   echo $ac_n "checking for _tanhl declaration""... $ac_c" 1>&6
-echo "configure:16751: checking for _tanhl declaration" >&5
+echo "configure:16757: checking for _tanhl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__tanhl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16761,14 +16767,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16765 "configure"
+#line 16771 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _tanhl(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16772: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16778: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__tanhl_use=yes
 else
@@ -16793,12 +16799,12 @@ fi
     for ac_func in _tanhl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16797: checking for $ac_func" >&5
+echo "configure:16803: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16802 "configure"
+#line 16808 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16821,7 +16827,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16825: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16831: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16849,7 +16855,7 @@ done
 
   
   echo $ac_n "checking for _sincosl declaration""... $ac_c" 1>&6
-echo "configure:16853: checking for _sincosl declaration" >&5
+echo "configure:16859: checking for _sincosl declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__sincosl_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16863,14 +16869,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16867 "configure"
+#line 16873 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _sincosl(0, 0, 0);
 ; return 0; }
 EOF
-if { (eval echo configure:16874: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16880: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__sincosl_use=yes
 else
@@ -16895,12 +16901,12 @@ fi
     for ac_func in _sincosl
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:16899: checking for $ac_func" >&5
+echo "configure:16905: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 16904 "configure"
+#line 16910 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -16923,7 +16929,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:16927: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:16933: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -16951,7 +16957,7 @@ done
 
   
   echo $ac_n "checking for _finitel declaration""... $ac_c" 1>&6
-echo "configure:16955: checking for _finitel declaration" >&5
+echo "configure:16961: checking for _finitel declaration" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_func__finitel_use'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -16965,14 +16971,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 16969 "configure"
+#line 16975 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
  _finitel(0);
 ; return 0; }
 EOF
-if { (eval echo configure:16976: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:16982: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_func__finitel_use=yes
 else
@@ -16997,12 +17003,12 @@ fi
     for ac_func in _finitel
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:17001: checking for $ac_func" >&5
+echo "configure:17007: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17006 "configure"
+#line 17012 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -17025,7 +17031,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:17029: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17035: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -17060,17 +17066,17 @@ done
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:17064: checking for $ac_hdr" >&5
+echo "configure:17070: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17069 "configure"
+#line 17075 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:17074: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17080: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -17101,12 +17107,12 @@ done
   ctan ctanf ctanh ctanhf carg cargf nan hypot hypotf atan2f expf copysignf
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:17105: checking for $ac_func" >&5
+echo "configure:17111: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17110 "configure"
+#line 17116 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -17129,7 +17135,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:17133: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17139: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -17164,12 +17170,12 @@ done
     csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:17168: checking for $ac_func" >&5
+echo "configure:17174: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17173 "configure"
+#line 17179 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -17192,7 +17198,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:17196: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17202: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -17226,7 +17232,7 @@ done
   
 
   echo $ac_n "checking for GNU C++ __complex__ support""... $ac_c" 1>&6
-echo "configure:17230: checking for GNU C++ __complex__ support" >&5
+echo "configure:17236: checking for GNU C++ __complex__ support" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_complex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -17240,7 +17246,7 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
 
     cat > conftest.$ac_ext <<EOF
-#line 17244 "configure"
+#line 17250 "configure"
 #include "confdefs.h"
 struct dcomplex { __complex__ double x; }; \
 		    dcomplex f(const dcomplex& x) { return dcomplex(x); }
@@ -17249,7 +17255,7 @@ int main() {
 		     dcomplex x; f(x); 
 ; return 0; }
 EOF
-if { (eval echo configure:17253: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17259: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_complex=ok
 else
@@ -17279,7 +17285,7 @@ EOF
   fi
 
   echo $ac_n "checking for GNU C++ __complex__ float support""... $ac_c" 1>&6
-echo "configure:17283: checking for GNU C++ __complex__ float support" >&5
+echo "configure:17289: checking for GNU C++ __complex__ float support" >&5
   if eval "test \"`echo '$''{'glibcpp_cv_float_complex'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -17312,14 +17318,14 @@ cross_compiling=$ac_cv_prog_cxx_cross
       };
 EOB
     cat > conftest.$ac_ext <<EOF
-#line 17316 "configure"
+#line 17322 "configure"
 #include "confdefs.h"
 #include "conftest.h"
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:17323: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17329: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   glibcpp_cv_float_complex=ok
 else
@@ -17352,17 +17358,17 @@ EOF
 
     ac_safe=`echo "wchar.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for wchar.h""... $ac_c" 1>&6
-echo "configure:17356: checking for wchar.h" >&5
+echo "configure:17362: checking for wchar.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17361 "configure"
+#line 17367 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:17366: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17372: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -17386,17 +17392,17 @@ fi
 
   ac_safe=`echo "wctype.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for wctype.h""... $ac_c" 1>&6
-echo "configure:17390: checking for wctype.h" >&5
+echo "configure:17396: checking for wctype.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17395 "configure"
+#line 17401 "configure"
 #include "confdefs.h"
 #include <wctype.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:17400: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17406: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -17422,16 +17428,16 @@ fi
     if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes; then
 
         echo $ac_n "checking for mbstate_t""... $ac_c" 1>&6
-echo "configure:17426: checking for mbstate_t" >&5
+echo "configure:17432: checking for mbstate_t" >&5
     cat > conftest.$ac_ext <<EOF
-#line 17428 "configure"
+#line 17434 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 int main() {
 mbstate_t teststate;
 ; return 0; }
 EOF
-if { (eval echo configure:17435: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17441: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   use_native_mbstatet=yes
 else
@@ -17450,16 +17456,16 @@ EOF
     fi
   
             echo $ac_n "checking for WCHAR_MIN and WCHAR_MAX""... $ac_c" 1>&6
-echo "configure:17454: checking for WCHAR_MIN and WCHAR_MAX" >&5
+echo "configure:17460: checking for WCHAR_MIN and WCHAR_MAX" >&5
     cat > conftest.$ac_ext <<EOF
-#line 17456 "configure"
+#line 17462 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 int main() {
 int i = WCHAR_MIN; int j = WCHAR_MAX;
 ; return 0; }
 EOF
-if { (eval echo configure:17463: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17469: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   has_wchar_minmax=yes
 else
@@ -17472,9 +17478,9 @@ rm -f conftest*
     echo "$ac_t""$has_wchar_minmax" 1>&6
   
             echo $ac_n "checking for WEOF""... $ac_c" 1>&6
-echo "configure:17476: checking for WEOF" >&5
+echo "configure:17482: checking for WEOF" >&5
     cat > conftest.$ac_ext <<EOF
-#line 17478 "configure"
+#line 17484 "configure"
 #include "confdefs.h"
 
       #include <wchar.h>
@@ -17483,7 +17489,7 @@ int main() {
 wint_t i = WEOF;
 ; return 0; }
 EOF
-if { (eval echo configure:17487: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17493: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   has_weof=yes
 else
@@ -17498,12 +17504,12 @@ rm -f conftest*
         for ac_func in wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:17502: checking for $ac_func" >&5
+echo "configure:17508: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17507 "configure"
+#line 17513 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -17526,7 +17532,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:17530: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17536: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -17553,7 +17559,7 @@ done
 
 
     echo $ac_n "checking for ISO C9X wchar_t support""... $ac_c" 1>&6
-echo "configure:17557: checking for ISO C9X wchar_t support" >&5
+echo "configure:17563: checking for ISO C9X wchar_t support" >&5
     if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes && test x"$ac_wfuncs" = xyes; then
       ac_isoC9X_wchar_t=yes
     else
@@ -17563,17 +17569,17 @@ echo "configure:17557: checking for ISO C9X wchar_t support" >&5
 
             ac_safe=`echo "iconv.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for iconv.h""... $ac_c" 1>&6
-echo "configure:17567: checking for iconv.h" >&5
+echo "configure:17573: checking for iconv.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17572 "configure"
+#line 17578 "configure"
 #include "confdefs.h"
 #include <iconv.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:17577: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17583: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -17598,12 +17604,12 @@ fi
     for ac_func in iconv_open iconv_close iconv
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:17602: checking for $ac_func" >&5
+echo "configure:17608: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17607 "configure"
+#line 17613 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -17626,7 +17632,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:17630: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:17636: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -17653,7 +17659,7 @@ done
 
 
     echo $ac_n "checking for XPG2 wchar_t support""... $ac_c" 1>&6
-echo "configure:17657: checking for XPG2 wchar_t support" >&5
+echo "configure:17663: checking for XPG2 wchar_t support" >&5
     if test x"$ac_has_iconv_h" = xyes && test x"$ac_XPG2funcs" = xyes; then
       ac_XPG2_wchar_t=yes
     else
@@ -17664,7 +17670,7 @@ echo "configure:17657: checking for XPG2 wchar_t support" >&5
             #    ac_isoC9X_wchar_t=no
     
     echo $ac_n "checking for enabled wchar_t specializations""... $ac_c" 1>&6
-echo "configure:17668: checking for enabled wchar_t specializations" >&5
+echo "configure:17674: checking for enabled wchar_t specializations" >&5
     if test x"$ac_isoC9X_wchar_t" = xyes && test x"$ac_XPG2_wchar_t" = xyes; then
       libinst_wstring_la="libinst-wstring.la"
       cat >> confdefs.h <<\EOF
@@ -17689,17 +17695,17 @@ EOF
   
   ac_safe=`echo "ctype.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for ctype.h""... $ac_c" 1>&6
-echo "configure:17693: checking for ctype.h" >&5
+echo "configure:17699: checking for ctype.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 17698 "configure"
+#line 17704 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:17703: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:17709: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -17720,9 +17726,9 @@ if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
         ctype_default=yes
 
         echo $ac_n "checking <ctype> for gnu-linux ""... $ac_c" 1>&6
-echo "configure:17724: checking <ctype> for gnu-linux " >&5
+echo "configure:17730: checking <ctype> for gnu-linux " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17726 "configure"
+#line 17732 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17733,7 +17739,7 @@ int
 	+ __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:17737: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17743: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_linux=yes
@@ -17752,9 +17758,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for freebsd 4.0 ""... $ac_c" 1>&6
-echo "configure:17756: checking <ctype> for freebsd 4.0 " >&5
+echo "configure:17762: checking <ctype> for freebsd 4.0 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17758 "configure"
+#line 17764 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17764,7 +17770,7 @@ int
 	+ _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}
 ; return 0; }
 EOF
-if { (eval echo configure:17768: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17774: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_bsd=yes
@@ -17784,9 +17790,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for freebsd 3.4 ""... $ac_c" 1>&6
-echo "configure:17788: checking <ctype> for freebsd 3.4 " >&5
+echo "configure:17794: checking <ctype> for freebsd 3.4 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17790 "configure"
+#line 17796 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17796,7 +17802,7 @@ int
       + _D + _P + _X + _G + __istype (a, 0);}
 ; return 0; }
 EOF
-if { (eval echo configure:17800: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17806: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_freebsd34=yes
@@ -17816,9 +17822,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for solaris 2.6,7,8 ""... $ac_c" 1>&6
-echo "configure:17820: checking <ctype> for solaris 2.6,7,8 " >&5
+echo "configure:17826: checking <ctype> for solaris 2.6,7,8 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17822 "configure"
+#line 17828 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17829,7 +17835,7 @@ int
 	+ __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:17833: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17839: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_solaris=yes
@@ -17844,7 +17850,7 @@ rm -f conftest*
 
     if test $ctype_solaris = "yes"; then
       echo $ac_n "checking   for version""... $ac_c" 1>&6
-echo "configure:17848: checking   for version" >&5
+echo "configure:17854: checking   for version" >&5
       ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -17853,14 +17859,14 @@ ac_link='${CXX-g++} -o conftest${ac_exeext} $CXXFLAGS $CPPFLAGS $LDFLAGS conftes
 cross_compiling=$ac_cv_prog_cxx_cross
  
       cat > conftest.$ac_ext <<EOF
-#line 17857 "configure"
+#line 17863 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
 typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;
 ; return 0; }
 EOF
-if { (eval echo configure:17864: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17870: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
       ctype_solaris26=yes
@@ -17892,9 +17898,9 @@ cross_compiling=$ac_cv_prog_cc_cross
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for solaris 2.5.1 ""... $ac_c" 1>&6
-echo "configure:17896: checking <ctype> for solaris 2.5.1 " >&5
+echo "configure:17902: checking <ctype> for solaris 2.5.1 " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17898 "configure"
+#line 17904 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17904,7 +17910,7 @@ int
 	+ __ctype[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:17908: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17914: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_solaris25=yes
@@ -17924,9 +17930,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for aix ""... $ac_c" 1>&6
-echo "configure:17928: checking <ctype> for aix " >&5
+echo "configure:17934: checking <ctype> for aix " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17930 "configure"
+#line 17936 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17937,7 +17943,7 @@ int
 	+ _VALC('a') + _IS('c', 0);}
 ; return 0; }
 EOF
-if { (eval echo configure:17941: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17947: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_aix=yes
@@ -17957,9 +17963,9 @@ rm -f conftest*
 
         if test $ctype_default = "yes"; then
     echo $ac_n "checking <ctype> for newlib ""... $ac_c" 1>&6
-echo "configure:17961: checking <ctype> for newlib " >&5
+echo "configure:17967: checking <ctype> for newlib " >&5
     cat > conftest.$ac_ext <<EOF
-#line 17963 "configure"
+#line 17969 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 int main() {
@@ -17969,7 +17975,7 @@ int
 	+ _ctype_[a];}
 ; return 0; }
 EOF
-if { (eval echo configure:17973: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:17979: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   \
     ctype_newlib=yes
@@ -18003,17 +18009,17 @@ fi
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:18007: checking for $ac_hdr" >&5
+echo "configure:18013: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 18012 "configure"
+#line 18018 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:18017: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:18023: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -18042,12 +18048,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:18046: checking for $ac_func" >&5
+echo "configure:18052: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 18051 "configure"
+#line 18057 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -18070,7 +18076,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:18074: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:18080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -18095,7 +18101,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap""... $ac_c" 1>&6
-echo "configure:18099: checking for working mmap" >&5
+echo "configure:18105: checking for working mmap" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_fixed_mapped'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -18103,7 +18109,7 @@ else
   ac_cv_func_mmap_fixed_mapped=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 18107 "configure"
+#line 18113 "configure"
 #include "confdefs.h"
 
 /* Thanks to Mike Haertel and Jim Avera for this test.
@@ -18243,7 +18249,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:18247: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:18253: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_fixed_mapped=yes
 else
@@ -18306,19 +18312,19 @@ fi
 
 if test $ac_cv_header_locale_h = yes; then
     echo $ac_n "checking for LC_MESSAGES""... $ac_c" 1>&6
-echo "configure:18310: checking for LC_MESSAGES" >&5
+echo "configure:18316: checking for LC_MESSAGES" >&5
 if eval "test \"`echo '$''{'ac_cv_val_LC_MESSAGES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 18315 "configure"
+#line 18321 "configure"
 #include "confdefs.h"
 #include <locale.h>
 int main() {
 return LC_MESSAGES
 ; return 0; }
 EOF
-if { (eval echo configure:18322: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:18328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_val_LC_MESSAGES=yes
 else
@@ -18778,8 +18784,8 @@ fi; done
 EOF
 
 cat >> $CONFIG_STATUS <<EOF
-ac_sources="$CSTDIO_H $CSTDIO_CC config/$THREADH"
-ac_dests="bits/c++io.h src/c++io.cc bits/c++threads.h"
+ac_sources="$CSTDIO_H $CSTDIO_CC $CCODECVT_C config/$THREADH"
+ac_dests="bits/c++io.h src/c++io.cc libio/c_codecvt.c bits/c++threads.h"
 EOF
 
 cat >> $CONFIG_STATUS <<\EOF
diff --git a/libstdc++-v3/docs/configopts.html b/libstdc++-v3/docs/configopts.html
index 4acff06ce8c..d006802bdf1 100644
--- a/libstdc++-v3/docs/configopts.html
+++ b/libstdc++-v3/docs/configopts.html
@@ -9,7 +9,7 @@
    <TITLE>libstdc++-v3 configure options</TITLE>
 <LINK REL="home" HREF="http://sources.redhat.com/libstdc++/">
 <LINK REL=StyleSheet HREF="lib3styles.css">
-<!-- $Id: configopts.html,v 1.5 2000/07/07 21:13:27 pme Exp $ -->
+<!-- $Id: configopts.html,v 1.6 2000/07/11 21:45:07 pme Exp $ -->
 </HEAD>
 <BODY>
 
@@ -33,6 +33,11 @@ options</A></H1>
    all have opposite forms as well</A>
    (enable/disable and with/without).  The defaults are for the latest
    snapshot, 2.90.8.
+<P>
+   The canonical way to find out the configure options that are
+   available for a given set of libstdc++ sources is to go to the
+   source directory and then type: <TT> ./config --help </TT>
+
 <DL>
  <DT><TT>--enable-multilib  </TT>[default]
  <DD><P>This is part of the generic multilib support for building
@@ -158,7 +163,7 @@ options</A></H1>
 
 <HR>
 <P CLASS="fineprint"><EM>
-$Id: configopts.html,v 1.5 2000/07/07 21:13:27 pme Exp $
+$Id: configopts.html,v 1.6 2000/07/11 21:45:07 pme Exp $
 </EM></P>
 
 
diff --git a/libstdc++-v3/libio/ChangeLog b/libstdc++-v3/libio/ChangeLog
index 5e59e82b882..870bb78f051 100644
--- a/libstdc++-v3/libio/ChangeLog
+++ b/libstdc++-v3/libio/ChangeLog
@@ -1,14 +1,23 @@
-2000-07-12  benjamin kosnik  <bkoz@haight.constant.com>
+2000-08-04  benjamin kosnik  <bkoz@haight.constant.com>
+
+	* genops.c (_IO_unbuffer_write): Don't call _IO_SETBUF if the
+	stream is not orientated.
+
+2000-08-04  Benjamin Kosnik  <bkoz@gnu.org>
+
+	* Makefile.am (LIBIO_SRCS): Add c_codecvt.c
+
+2000-07-12  benjamin kosnik  <bkoz@gnu.org>
 
 	* _G_config.h: Smoke less crack, don't define _G_HAVE_ST_BLKSIZE.
 
-2000-04-25  Benjamin Kosnik  <bkoz@haight.constant.com>
+2000-04-25  Benjamin Kosnik  <bkoz@gnu.org>
 
 	* libio.h: Change decls for seekoff/seekpos.
 	* Makefile.am: Add bits to not generate _G_config.h on linux.
 	* gen-params: Remove sigset_t declaration.
 
-2000-02-29  Benjamin Kosnik  <bkoz@haight.constant.com>
+2000-02-29  Benjamin Kosnik  <bkoz@gnu.org>
 
 	* Makefile.am (libio_headers): Strip out deadweight.
 
diff --git a/libstdc++-v3/libio/Makefile.am b/libstdc++-v3/libio/Makefile.am
index bf2653990ea..0493e93a390 100644
--- a/libstdc++-v3/libio/Makefile.am
+++ b/libstdc++-v3/libio/Makefile.am
@@ -71,21 +71,21 @@ libio_headers = \
 
 if GLIBCPP_NEED_LIBIO
 LIBIO_SRCS = \
-	filedoalloc.c genops.c fileops.c stdfiles.c cleanup.c
+	filedoalloc.c genops.c fileops.c stdfiles.c cleanup.c c_codecvt.c
 else
 LIBIO_SRCS =
 endif
 
 if GLIBCPP_NEED_WLIBIO
 LIBIO_WSRCS = \
-	iofwide.c wfiledoalloc.c wfileops.c wgenops.c
+	wfiledoalloc.c wfileops.c wgenops.c
 else
 LIBIO_WSRCS =
 endif
 
 if GLIBCPP_NEED_XTRA_LIBIO
 LIBIO_XTRASRCS = \
-	iofclose.c iofopen.c stdio.c
+	iofwide.c iofclose.c iofopen.c stdio.c
 else
 LIBIO_XTRASRCS =
 endif
diff --git a/libstdc++-v3/libio/Makefile.in b/libstdc++-v3/libio/Makefile.in
index 759161ba89b..83409fca69c 100644
--- a/libstdc++-v3/libio/Makefile.in
+++ b/libstdc++-v3/libio/Makefile.in
@@ -146,11 +146,11 @@ LINK = $(LIBTOOL) --mode=link "$(CCLD)" $(CFLAGS) $(AM_CFLAGS) $(LDFLAGS) -o $@
 
 libio_headers =          libio.h libioP.h iolibio.h
 
-@GLIBCPP_NEED_LIBIO_TRUE@LIBIO_SRCS = 	filedoalloc.c genops.c fileops.c stdfiles.c cleanup.c
+@GLIBCPP_NEED_LIBIO_TRUE@LIBIO_SRCS = 	filedoalloc.c genops.c fileops.c stdfiles.c cleanup.c c_codecvt.c
 @GLIBCPP_NEED_LIBIO_FALSE@LIBIO_SRCS = 
-@GLIBCPP_NEED_WLIBIO_TRUE@LIBIO_WSRCS = 	iofwide.c wfiledoalloc.c wfileops.c wgenops.c
+@GLIBCPP_NEED_WLIBIO_TRUE@LIBIO_WSRCS = 	wfiledoalloc.c wfileops.c wgenops.c
 @GLIBCPP_NEED_WLIBIO_FALSE@LIBIO_WSRCS = 
-@GLIBCPP_NEED_XTRA_LIBIO_TRUE@LIBIO_XTRASRCS = 	iofclose.c iofopen.c stdio.c
+@GLIBCPP_NEED_XTRA_LIBIO_TRUE@LIBIO_XTRASRCS = 	iofwide.c iofclose.c iofopen.c stdio.c
 @GLIBCPP_NEED_XTRA_LIBIO_FALSE@LIBIO_XTRASRCS = 
 
 EXTRA_DIST = iostreamP.h
@@ -175,16 +175,16 @@ libio_la_LDFLAGS =
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@fileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdfiles.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@cleanup.lo \
-@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
+@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@c_codecvt.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wfiledoalloc.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wfileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wgenops.lo \
+@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofclose.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofopen.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdio.lo
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@libio_la_OBJECTS = 
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@libio_la_OBJECTS =  \
-@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wfiledoalloc.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wfileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wgenops.lo
@@ -193,8 +193,10 @@ libio_la_LDFLAGS =
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@genops.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@fileops.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@stdfiles.lo \
-@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@cleanup.lo
+@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@cleanup.lo \
+@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@c_codecvt.lo
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@libio_la_OBJECTS =  \
+@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofclose.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofopen.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdio.lo
@@ -204,14 +206,16 @@ libio_la_LDFLAGS =
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@fileops.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdfiles.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@cleanup.lo \
+@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@c_codecvt.lo \
+@GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofclose.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofopen.lo \
 @GLIBCPP_NEED_WLIBIO_FALSE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdio.lo
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@libio_la_OBJECTS =  \
-@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wfiledoalloc.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wfileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@wgenops.lo \
+@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofwide.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofclose.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@iofopen.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_FALSE@@GLIBCPP_NEED_XTRA_LIBIO_TRUE@stdio.lo
@@ -221,7 +225,7 @@ libio_la_LDFLAGS =
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@fileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@stdfiles.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@cleanup.lo \
-@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@iofwide.lo \
+@GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@c_codecvt.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wfiledoalloc.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wfileops.lo \
 @GLIBCPP_NEED_WLIBIO_TRUE@@GLIBCPP_NEED_LIBIO_TRUE@@GLIBCPP_NEED_XTRA_LIBIO_FALSE@wgenops.lo
diff --git a/libstdc++-v3/libio/genops.c b/libstdc++-v3/libio/genops.c
index 281bab0e717..5d8f520e000 100644
--- a/libstdc++-v3/libio/genops.c
+++ b/libstdc++-v3/libio/genops.c
@@ -783,7 +783,9 @@ _IO_unbuffer_write ()
   for (fp = (_IO_FILE *) _IO_list_all; fp; fp = fp->_chain)
     if (! (fp->_flags & _IO_UNBUFFERED)
 	&& (! (fp->_flags & _IO_NO_WRITES)
-	    || (fp->_flags & _IO_IS_APPENDING)))
+	    || (fp->_flags & _IO_IS_APPENDING))
+	/* Iff stream is un-orientated, it wasn't used. */
+	&& fp->_mode != 0)
       _IO_SETBUF (fp, NULL, 0);
 }
 
diff --git a/libstdc++-v3/libio/iofwide.c b/libstdc++-v3/libio/iofwide.c
index 5032ce5b771..77b45918e98 100644
--- a/libstdc++-v3/libio/iofwide.c
+++ b/libstdc++-v3/libio/iofwide.c
@@ -38,7 +38,6 @@
 # include <iconv/gconv_int.h>
 #endif
 
-
 /* Prototypes of libio's codecvt functions.  */
 static enum __codecvt_result do_out (struct _IO_codecvt *codecvt,
 				     __mbstate_t *statep,
@@ -109,12 +108,12 @@ _IO_fwide (fp, mode)
       fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end;
       fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_base;
 
+#ifdef _LIBC
       /* The functions are always the same.  */
       *cc = __libio_codecvt;
 
       /* Get the character conversion functions based on the currently
 	 selected locale for LC_CTYPE.  */
-#ifdef _LIBC
       {
 	struct gconv_fcts fcts;
 
@@ -173,7 +172,7 @@ _IO_fwide (fp, mode)
 	if (cc->__cd_in != (iconv_t) -1)
 	  cc->__cd_out = iconv_open (external_ccs, internal_ccs);
 
-	if (cc->__cd_in != (iconv_t) -1 || cc->__cd_out != (iconv_t) -1)
+	if (cc->__cd_in == (iconv_t) -1 || cc->__cd_out == (iconv_t) -1)
 	  /* XXX */
 	  abort ();
       }
@@ -196,7 +195,6 @@ _IO_fwide (fp, mode)
 weak_alias (_IO_fwide, fwide)
 #endif
 
-
 static enum __codecvt_result
 do_out (struct _IO_codecvt *codecvt, __mbstate_t *statep,
 	const wchar_t *from_start, const wchar_t *from_end,
@@ -241,21 +239,22 @@ do_out (struct _IO_codecvt *codecvt, __mbstate_t *statep,
     }
 #else
 # ifdef _GLIBCPP_USE_WCHAR_T
+
   size_t res;
   const char *from_start_copy = (const char *) from_start;
   size_t from_len = from_end - from_start;
-  char *to_start_copy = (char *) from_start;
+  char *to_start_copy = to_start;
   size_t to_len = to_end - to_start;
-
   res = iconv (codecvt->__cd_out, &from_start_copy, &from_len,
 	       &to_start_copy, &to_len);
-  
+
   if (res == 0 || from_len == 0)
     result = __codecvt_ok;
   else if (to_len < codecvt->__codecvt_do_max_length (codecvt))
     result = __codecvt_partial;
   else
     result = __codecvt_error;
+
 # else
   /* Decide what to do.  */
   result = __codecvt_error;
@@ -477,3 +476,10 @@ do_max_length (struct _IO_codecvt *codecvt)
   return MB_CUR_MAX;
 #endif
 }
+
+
+
+
+
+
+
diff --git a/libstdc++-v3/testsuite/21_strings/inserters_extractors.cc b/libstdc++-v3/testsuite/21_strings/inserters_extractors.cc
index 8b476fd4e77..4256d07880a 100644
--- a/libstdc++-v3/testsuite/21_strings/inserters_extractors.cc
+++ b/libstdc++-v3/testsuite/21_strings/inserters_extractors.cc
@@ -190,7 +190,7 @@ void test04(int size)
 void test05(int size)
 {
   bool test = true;
-  const char* filename = "testsuite/inserters_extractors-1.txt";
+  const char filename[] = "testsuite/inserters_extractors-1.txt";
   const char fillc = 'f';
   std::ofstream ofs(filename);
   std::string str(size, fillc);
diff --git a/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc b/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc
index 12c9e8bd039..0c8738e0692 100644
--- a/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc
+++ b/libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc
@@ -105,7 +105,7 @@ test03(void)
   double tf_size = BUFSIZ * 2.5;
   ofstream testfile(TEST_IN);
 
-  for ( int i=0; i < tf_size; ++i )
+  for (int i = 0; i < tf_size; ++i)
     testfile.put('.');
   testfile.close();
 
-- 
2.30.2