+2012-03-01 Benjamin Kosnik <bkoz@redhat.com>
+ Ramana Radhakrishnan <ramana@gcc.gnu.org>
+
+ PR libstdc++/51785
+ * acinclude.m4 (GLIBCXX_CHECK_STDIO_PROTO): New.
+ * configure.ac: Call it.
+ * configure: Regenerate.
+ * config.h.in: Same.
+ * config/os/gnu-linux/os_defines.h: Conditionally undefine
+ _GLIBCXX_HAVE_GETS.
+ * include/c_global/cstdio: Conditionally declare deprecated gets.
+ * include/c_std/cstdio: Same.
+
2012-03-01 Michael Spertus <mike_spertus@symantec.com>
* include/tr2/type_traits (typelist): To __reflection_typelist.
AC_LANG_RESTORE
])
+dnl
+dnl Check whether required C++ overloads are present in <stdio.h>.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_STDIO_PROTO], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ AC_MSG_CHECKING([for gets declaration])
+ AC_CACHE_VAL(glibcxx_cv_gets, [
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
+ [#include <stdio.h>
+ namespace test
+ {
+ using ::gets;
+ }
+ ])],
+ [glibcxx_cv_gets=yes],
+ [glibcxx_cv_gets=no]
+ )])
+
+ if test $glibcxx_cv_gets = yes; then
+ AC_DEFINE(HAVE_GETS, 1, [Define if gets is available in <stdio.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_gets)
+
+ AC_LANG_RESTORE
+])
+
dnl
dnl Check whether macros, etc are present for <system_error>
dnl
/* Define if _Unwind_GetIPInfo is available. */
#undef HAVE_GETIPINFO
+/* Define if gets is available in <stdio.h>. */
+#undef HAVE_GETS
+
/* Define to 1 if you have the `hypot' function. */
#undef HAVE_HYPOT
// Specific definitions for GNU/Linux -*- C++ -*-
-// Copyright (C) 2000, 2001, 2002, 2003, 2009, 2010
+// Copyright (C) 2000, 2001, 2002, 2003, 2009, 2010, 2012
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
#include <features.h>
+// Provide a declaration for the possibly deprecated gets function, as
+// glibc 2.15 and later does not declare gets for ISO C11 when
+// __GNU_SOURCE is defined.
+#if __GLIBC_PREREQ(2,15) && defined(_GNU_SOURCE)
+# undef _GLIBCXX_HAVE_GETS
+#endif
+
#endif
+
+ ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gets declaration" >&5
+$as_echo_n "checking for gets declaration... " >&6; }
+ if test "${glibcxx_cv_gets+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdio.h>
+ namespace test
+ {
+ using ::gets;
+ }
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+ glibcxx_cv_gets=yes
+else
+ glibcxx_cv_gets=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+ if test $glibcxx_cv_gets = yes; then
+
+$as_echo "#define HAVE_GETS 1" >>confdefs.h
+
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_gets" >&5
+$as_echo "$glibcxx_cv_gets" >&6; }
+
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EOWNERDEAD" >&5
$as_echo_n "checking for EOWNERDEAD... " >&6; }
if test "${glibcxx_cv_system_error1+set}" = set; then :
# Checks for operating systems support that doesn't require linking.
GLIBCXX_CHECK_MATH_PROTO
GLIBCXX_CHECK_STDLIB_PROTO
+GLIBCXX_CHECK_STDIO_PROTO
GLIBCXX_CHECK_SYSTEM_ERROR
# For the streamoff typedef.
// -*- C++ -*- forwarding header.
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007, 2008, 2009, 2010
+// 2006, 2007, 2008, 2009, 2010, 2012
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
#ifndef _GLIBCXX_CSTDIO
#define _GLIBCXX_CSTDIO 1
+#ifndef _GLIBCXX_HAVE_GETS
+extern "C" extern char* gets (char* __s) __attribute__((deprecated));
+#endif
+
// Get rid of those macros defined in <stdio.h> in lieu of real functions.
#undef clearerr
#undef fclose
#undef ftell
#undef fwrite
#undef getc
-#undef getchar
#undef gets
#undef perror
#undef printf
// -*- C++ -*- forwarding header.
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2009, 2010 Free Software Foundation, Inc.
+// 2009, 2010, 2012 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
#include <bits/c++config.h>
#include <stdio.h>
+#ifndef _GLIBCXX_HAVE_GETS
+extern "C" extern char* gets (char* __s) __attribute__((deprecated));
+#endif
+
// Get rid of those macros defined in <stdio.h> in lieu of real functions.
#undef clearerr
#undef fclose
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