From: Daniel Jacobowitz <drow@false.org>
Date: Tue, 13 Feb 2007 14:40:31 +0000 (+0000)
Subject: 	PR bootstrap/30753
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=24ff9987e9edcd00c424e48dbf589c19271e0072;p=binutils-gdb.git

	PR bootstrap/30753
	* configure.ac: Remove obsolete build / host tests.  Use AC_PROG_CC
	unconditionally.  Use AC_PROG_CXX.  Use ACX_TOOL_DIRS to find $prefix.
	* configure: Regenerated.
---

diff --git a/ChangeLog b/ChangeLog
index 0b686ad1322..96c947b3063 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2007-02-13  Daniel Jacobowitz  <dan@codesourcery.com>
+	    Paolo Bonzini  <bonzini@gnu.org>
+
+	PR bootstrap/30753
+	* configure.ac: Remove obsolete build / host tests.  Use AC_PROG_CC
+	unconditionally.  Use AC_PROG_CXX.  Use ACX_TOOL_DIRS to find $prefix.
+	* configure: Regenerated.
+
 2007-02-10  Paolo Bonzini  <bonzini@gnu.org>
 
 	* configure: Regenerate.
diff --git a/configure b/configure
index d127a9b448c..6f6bffa5b3c 100755
--- a/configure
+++ b/configure
@@ -272,7 +272,7 @@ PACKAGE_STRING=
 PACKAGE_BUGREPORT=
 
 ac_unique_file="move-if-change"
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os build_noncanonical host_noncanonical target_noncanonical host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN LN_S TOPLEVEL_CONFIGURE_ARGUMENTS build_libsubdir build_subdir host_subdir target_subdir CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT GNATBIND ac_ct_GNATBIND GNATMAKE ac_ct_GNATMAKE do_compare gmplibs gmpinc stage1_languages SYSROOT_CFLAGS_FOR_TARGET RPATH_ENVVAR tooldir build_tooldir CONFIGURE_GDB_TK GDB_TK INSTALL_GDB_TK build_configargs build_configdirs host_configargs configdirs target_configargs CC_FOR_BUILD config_shell YACC BISON M4 LEX FLEX MAKEINFO EXPECT RUNTEST AR AS DLLTOOL LD LIPO NM RANLIB STRIP WINDRES OBJCOPY OBJDUMP CXX CFLAGS_FOR_BUILD CXXFLAGS CC_FOR_TARGET CXX_FOR_TARGET GCC_FOR_TARGET GCJ_FOR_TARGET GFORTRAN_FOR_TARGET AR_FOR_TARGET AS_FOR_TARGET DLLTOOL_FOR_TARGET LD_FOR_TARGET LIPO_FOR_TARGET NM_FOR_TARGET OBJDUMP_FOR_TARGET RANLIB_FOR_TARGET STRIP_FOR_TARGET WINDRES_FOR_TARGET RAW_CXX_FOR_TARGET FLAGS_FOR_TARGET COMPILER_AS_FOR_TARGET COMPILER_LD_FOR_TARGET COMPILER_NM_FOR_TARGET MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT stage1_cflags stage1_checking stage2_werror_flag datarootdir docdir htmldir LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os build_noncanonical host_noncanonical target_noncanonical host host_cpu host_vendor host_os target target_cpu target_vendor target_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN LN_S TOPLEVEL_CONFIGURE_ARGUMENTS build_libsubdir build_subdir host_subdir target_subdir CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CXX CXXFLAGS ac_ct_CXX GNATBIND ac_ct_GNATBIND do_compare gmplibs gmpinc stage1_languages SYSROOT_CFLAGS_FOR_TARGET RPATH_ENVVAR tooldir build_tooldir CONFIGURE_GDB_TK GDB_TK INSTALL_GDB_TK build_configargs build_configdirs host_configargs configdirs target_configargs CC_FOR_BUILD config_shell YACC BISON M4 LEX FLEX MAKEINFO EXPECT RUNTEST AR AS DLLTOOL LD LIPO NM RANLIB STRIP WINDRES OBJCOPY OBJDUMP CFLAGS_FOR_BUILD CC_FOR_TARGET CXX_FOR_TARGET GCC_FOR_TARGET GCJ_FOR_TARGET GFORTRAN_FOR_TARGET AR_FOR_TARGET AS_FOR_TARGET DLLTOOL_FOR_TARGET LD_FOR_TARGET LIPO_FOR_TARGET NM_FOR_TARGET OBJDUMP_FOR_TARGET RANLIB_FOR_TARGET STRIP_FOR_TARGET WINDRES_FOR_TARGET RAW_CXX_FOR_TARGET FLAGS_FOR_TARGET COMPILER_AS_FOR_TARGET COMPILER_LD_FOR_TARGET COMPILER_NM_FOR_TARGET MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT stage1_cflags stage1_checking stage2_werror_flag datarootdir docdir htmldir LIBOBJS LTLIBOBJS'
 ac_subst_files='serialization_dependencies host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag'
 
 # Initialize some variables set by options.
@@ -729,6 +729,14 @@ ac_env_CPPFLAGS_set=${CPPFLAGS+set}
 ac_env_CPPFLAGS_value=$CPPFLAGS
 ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
 ac_cv_env_CPPFLAGS_value=$CPPFLAGS
+ac_env_CXX_set=${CXX+set}
+ac_env_CXX_value=$CXX
+ac_cv_env_CXX_set=${CXX+set}
+ac_cv_env_CXX_value=$CXX
+ac_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_env_CXXFLAGS_value=$CXXFLAGS
+ac_cv_env_CXXFLAGS_set=${CXXFLAGS+set}
+ac_cv_env_CXXFLAGS_value=$CXXFLAGS
 
 #
 # Report the --help message.
@@ -858,6 +866,8 @@ Some influential environment variables:
               nonstandard directory <lib dir>
   CPPFLAGS    C/C++ preprocessor flags, e.g. -I<include dir> if you have
               headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -2585,26 +2595,12 @@ if test -z "${CC}" && test "${build}" = "${host}" ; then
 fi
 
 if test "${build}" != "${host}" ; then
-  # If we are doing a Canadian Cross, in which the host and build systems
-  # are not the same, we set reasonable default values for the tools.
-
-  CC=${CC-${host_noncanonical}-gcc}
-  CFLAGS=${CFLAGS-"-g -O2"}
-  CXX=${CXX-${host_noncanonical}-c++}
-  CXXFLAGS=${CXXFLAGS-"-g -O2"}
   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
-
 else
-  # Set reasonable default values for some tools even if not Canadian.
-  # Of course, these are different reasonable default values, originally
-  # specified directly in the Makefile.
-  # We don't export, so that autoconf can do its job.
-  # Note that all these settings are above the fragment inclusion point
-  # in Makefile.in, so can still be overridden by fragments.
-  # This is all going to change when we autoconfiscate...
-
   CC_FOR_BUILD="\$(CC)"
-  ac_ext=c
+fi
+
+ac_ext=c
 ac_cpp='$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 $LIBS >&5'
@@ -3534,44 +3530,23 @@ ac_compile='$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
 
-
-  # We must set the default linker to the linker used by gcc for the correct
-  # operation of libtool.  If LD is not defined and we are using gcc, try to
-  # set the LD default to the ld used by gcc.
-  if test -z "$LD"; then
-    if test "$GCC" = yes; then
-      case $build in
-      *-*-mingw*)
-	gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
-      *)
-	gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
-      esac
-      case $gcc_prog_ld in
-      # Accept absolute paths.
-      [\\/]* | [A-Za-z]:[\\/]*)
-        LD="$gcc_prog_ld" ;;
-      esac
-    fi
-  fi
-
-  CXX=${CXX-"c++"}
-  CFLAGS=${CFLAGS-"-g"}
-  CXXFLAGS=${CXXFLAGS-"-g -O2"}
-fi
-
-
-
-
+ac_ext=cc
+ac_cpp='$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
 if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}gnatbind", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gnatbind; ac_word=$2
+  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_GNATBIND+set}" = set; then
+if test "${ac_cv_prog_CXX+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test -n "$GNATBIND"; then
-  ac_cv_prog_GNATBIND="$GNATBIND" # Let the user override the test.
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -3580,7 +3555,7 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_GNATBIND="${ac_tool_prefix}gnatbind"
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -3589,27 +3564,31 @@ done
 
 fi
 fi
-GNATBIND=$ac_cv_prog_GNATBIND
-if test -n "$GNATBIND"; then
-  echo "$as_me:$LINENO: result: $GNATBIND" >&5
-echo "${ECHO_T}$GNATBIND" >&6
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  echo "$as_me:$LINENO: result: $CXX" >&5
+echo "${ECHO_T}$CXX" >&6
 else
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
+    test -n "$CXX" && break
+  done
 fi
-if test -z "$ac_cv_prog_GNATBIND"; then
-  ac_ct_GNATBIND=$GNATBIND
-  # Extract the first word of "gnatbind", so it can be a program name with args.
-set dummy gnatbind; ac_word=$2
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in $CCC g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_ac_ct_GNATBIND+set}" = set; then
+if test "${ac_cv_prog_ac_ct_CXX+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test -n "$ac_ct_GNATBIND"; then
-  ac_cv_prog_ac_ct_GNATBIND="$ac_ct_GNATBIND" # Let the user override the test.
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -3618,40 +3597,327 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct_GNATBIND="gnatbind"
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
 done
 
-  test -z "$ac_cv_prog_ac_ct_GNATBIND" && ac_cv_prog_ac_ct_GNATBIND="no"
 fi
 fi
-ac_ct_GNATBIND=$ac_cv_prog_ac_ct_GNATBIND
-if test -n "$ac_ct_GNATBIND"; then
-  echo "$as_me:$LINENO: result: $ac_ct_GNATBIND" >&5
-echo "${ECHO_T}$ac_ct_GNATBIND" >&6
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CXX" >&5
+echo "${ECHO_T}$ac_ct_CXX" >&6
 else
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
-  GNATBIND=$ac_ct_GNATBIND
+  test -n "$ac_ct_CXX" && break
+done
+test -n "$ac_ct_CXX" || ac_ct_CXX="g++"
+
+  CXX=$ac_ct_CXX
+fi
+
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+     "checking for C++ compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+  (eval $ac_compiler --version </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+  (eval $ac_compiler -v </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+  (eval $ac_compiler -V </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C++ compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C++ compiler... $ECHO_C" >&6
+if test "${ac_cv_cxx_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  GNATBIND="$ac_cv_prog_GNATBIND"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_cxx_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_cxx_compiler_gnu" >&6
+GXX=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+CXXFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CXX accepts -g" >&5
+echo $ECHO_N "checking whether $CXX accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cxx_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cxx_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cxx_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cxx_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cxx_g" >&6
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+for ac_declaration in \
+   '' \
+   'extern "C" void std::exit (int) throw (); using std::exit;' \
+   'extern "C" void std::exit (int); using std::exit;' \
+   'extern "C" void exit (int) throw ();' \
+   'extern "C" void exit (int);' \
+   'void exit (int);'
+do
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
+
+ac_ext=c
+ac_cpp='$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
+
+
+# We must set the default linker to the linker used by gcc for the correct
+# operation of libtool.  If LD is not defined and we are using gcc, try to
+# set the LD default to the ld used by gcc.
+if test -z "$LD"; then
+  if test "$GCC" = yes; then
+    case $build in
+    *-*-mingw*)
+      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
+    *)
+      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
+    esac
+    case $gcc_prog_ld in
+    # Accept absolute paths.
+    [\\/]* | [A-Za-z]:[\\/]*)
+      LD="$gcc_prog_ld" ;;
+    esac
+  fi
 fi
 
+
+
+
 if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}gnatmake", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gnatmake; ac_word=$2
+  # Extract the first word of "${ac_tool_prefix}gnatbind", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gnatbind; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_GNATMAKE+set}" = set; then
+if test "${ac_cv_prog_GNATBIND+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test -n "$GNATMAKE"; then
-  ac_cv_prog_GNATMAKE="$GNATMAKE" # Let the user override the test.
+  if test -n "$GNATBIND"; then
+  ac_cv_prog_GNATBIND="$GNATBIND" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -3660,7 +3926,7 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_GNATMAKE="${ac_tool_prefix}gnatmake"
+    ac_cv_prog_GNATBIND="${ac_tool_prefix}gnatbind"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -3669,27 +3935,27 @@ done
 
 fi
 fi
-GNATMAKE=$ac_cv_prog_GNATMAKE
-if test -n "$GNATMAKE"; then
-  echo "$as_me:$LINENO: result: $GNATMAKE" >&5
-echo "${ECHO_T}$GNATMAKE" >&6
+GNATBIND=$ac_cv_prog_GNATBIND
+if test -n "$GNATBIND"; then
+  echo "$as_me:$LINENO: result: $GNATBIND" >&5
+echo "${ECHO_T}$GNATBIND" >&6
 else
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
 fi
-if test -z "$ac_cv_prog_GNATMAKE"; then
-  ac_ct_GNATMAKE=$GNATMAKE
-  # Extract the first word of "gnatmake", so it can be a program name with args.
-set dummy gnatmake; ac_word=$2
+if test -z "$ac_cv_prog_GNATBIND"; then
+  ac_ct_GNATBIND=$GNATBIND
+  # Extract the first word of "gnatbind", so it can be a program name with args.
+set dummy gnatbind; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_ac_ct_GNATMAKE+set}" = set; then
+if test "${ac_cv_prog_ac_ct_GNATBIND+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-  if test -n "$ac_ct_GNATMAKE"; then
-  ac_cv_prog_ac_ct_GNATMAKE="$ac_ct_GNATMAKE" # Let the user override the test.
+  if test -n "$ac_ct_GNATBIND"; then
+  ac_cv_prog_ac_ct_GNATBIND="$ac_ct_GNATBIND" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -3698,28 +3964,28 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct_GNATMAKE="gnatmake"
+    ac_cv_prog_ac_ct_GNATBIND="gnatbind"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
 done
 
-  test -z "$ac_cv_prog_ac_ct_GNATMAKE" && ac_cv_prog_ac_ct_GNATMAKE="no"
+  test -z "$ac_cv_prog_ac_ct_GNATBIND" && ac_cv_prog_ac_ct_GNATBIND="no"
 fi
 fi
-ac_ct_GNATMAKE=$ac_cv_prog_ac_ct_GNATMAKE
-if test -n "$ac_ct_GNATMAKE"; then
-  echo "$as_me:$LINENO: result: $ac_ct_GNATMAKE" >&5
-echo "${ECHO_T}$ac_ct_GNATMAKE" >&6
+ac_ct_GNATBIND=$ac_cv_prog_ac_ct_GNATBIND
+if test -n "$ac_ct_GNATBIND"; then
+  echo "$as_me:$LINENO: result: $ac_ct_GNATBIND" >&5
+echo "${ECHO_T}$ac_ct_GNATBIND" >&6
 else
   echo "$as_me:$LINENO: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
-  GNATMAKE=$ac_ct_GNATMAKE
+  GNATBIND=$ac_ct_GNATBIND
 else
-  GNATMAKE="$ac_cv_prog_GNATMAKE"
+  GNATBIND="$ac_cv_prog_GNATBIND"
 fi
 
 echo "$as_me:$LINENO: checking whether compiler driver understands Ada" >&5
@@ -3748,7 +4014,7 @@ fi
 echo "$as_me:$LINENO: result: $acx_cv_cc_gcc_supports_ada" >&5
 echo "${ECHO_T}$acx_cv_cc_gcc_supports_ada" >&6
 
-if test x$GNATBIND != xno && test x$GNATMAKE != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
+if test x$GNATBIND != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
   have_gnat=yes
 else
   have_gnat=no
@@ -4485,6 +4751,54 @@ case "$host" in
     enable_gdbtk=no ;;
 esac
 
+# To find our prefix, in gcc_cv_tool_prefix.
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  echo "#! /bin/sh" >conf$$.sh
+  echo  "exit 0"   >>conf$$.sh
+  chmod +x conf$$.sh
+  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
+    PATH_SEPARATOR=';'
+  else
+    PATH_SEPARATOR=:
+  fi
+  rm -f conf$$.sh
+fi
+
+
+
+if test "x$exec_prefix" = xNONE; then
+        if test "x$prefix" = xNONE; then
+                gcc_cv_tool_prefix=$ac_default_prefix
+        else
+                gcc_cv_tool_prefix=$prefix
+        fi
+else
+        gcc_cv_tool_prefix=$exec_prefix
+fi
+
+# If there is no compiler in the tree, use the PATH only.  In any
+# case, if there is no compiler in the tree nobody should use
+# AS_FOR_TARGET and LD_FOR_TARGET.
+if test x$host = x$build && test -f $srcdir/gcc/BASE-VER; then
+    gcc_version=`cat $srcdir/gcc/BASE-VER`
+    gcc_cv_tool_dirs="$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
+    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical$PATH_SEPARATOR"
+    gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
+    gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical$PATH_SEPARATOR"
+    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
+    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin$PATH_SEPARATOR"
+else
+    gcc_cv_tool_dirs=
+fi
+
+if test x$build = x$target && test -n "$md_exec_prefix"; then
+        gcc_cv_tool_dirs="$gcc_cv_tool_dirs$md_exec_prefix$PATH_SEPARATOR"
+fi
+
+
+
 copy_dirs=
 
 
@@ -4507,10 +4821,7 @@ if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
     exit 1
   fi
   if test x"${with_headers}" != xyes ; then
-    case "${exec_prefixoption}" in
-    "") x=${prefix} ;;
-    *) x=${exec_prefix} ;;
-    esac
+    x=${gcc_cv_tool_prefix}
     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
   fi
 fi
@@ -4526,10 +4837,7 @@ if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
   if test x"${with_libs}" != xyes ; then
     # Copy the libraries in reverse order, so that files in the first named
     # library override files in subsequent libraries.
-    case "${exec_prefixoption}" in
-    "") x=${prefix} ;;
-    *) x=${exec_prefix} ;;
-    esac
+    x=${gcc_cv_tool_prefix}
     for l in ${with_libs}; do
       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
     done
@@ -5015,7 +5323,8 @@ baseargs=
 keep_next=no
 skip_next=no
 eval "set -- $ac_configure_args"
-for ac_arg; do
+for ac_arg
+do
   if test X"$skip_next" = X"yes"; then
     skip_next=no
     continue
@@ -7170,52 +7479,6 @@ fi
 
 
 
-# The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
-  echo "#! /bin/sh" >conf$$.sh
-  echo  "exit 0"   >>conf$$.sh
-  chmod +x conf$$.sh
-  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
-    PATH_SEPARATOR=';'
-  else
-    PATH_SEPARATOR=:
-  fi
-  rm -f conf$$.sh
-fi
-
-
-
-if test "x$exec_prefix" = xNONE; then
-        if test "x$prefix" = xNONE; then
-                gcc_cv_tool_prefix=$ac_default_prefix
-        else
-                gcc_cv_tool_prefix=$prefix
-        fi
-else
-        gcc_cv_tool_prefix=$exec_prefix
-fi
-
-# If there is no compiler in the tree, use the PATH only.  In any
-# case, if there is no compiler in the tree nobody should use
-# AS_FOR_TARGET and LD_FOR_TARGET.
-if test x$host = x$build && test -f $srcdir/gcc/BASE-VER; then
-    gcc_version=`cat $srcdir/gcc/BASE-VER`
-    gcc_cv_tool_dirs="$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
-    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical$PATH_SEPARATOR"
-    gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
-    gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical$PATH_SEPARATOR"
-    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
-    gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin$PATH_SEPARATOR"
-else
-    gcc_cv_tool_dirs=
-fi
-
-if test x$build = x$target && test -n "$md_exec_prefix"; then
-        gcc_cv_tool_dirs="$gcc_cv_tool_dirs$md_exec_prefix$PATH_SEPARATOR"
-fi
-
-
-
 cat > conftest.c << \EOF
 #ifdef __GNUC__
   gcc_yay;
@@ -10460,10 +10723,11 @@ s,@CPPFLAGS@,$CPPFLAGS,;t t
 s,@ac_ct_CC@,$ac_ct_CC,;t t
 s,@EXEEXT@,$EXEEXT,;t t
 s,@OBJEXT@,$OBJEXT,;t t
+s,@CXX@,$CXX,;t t
+s,@CXXFLAGS@,$CXXFLAGS,;t t
+s,@ac_ct_CXX@,$ac_ct_CXX,;t t
 s,@GNATBIND@,$GNATBIND,;t t
 s,@ac_ct_GNATBIND@,$ac_ct_GNATBIND,;t t
-s,@GNATMAKE@,$GNATMAKE,;t t
-s,@ac_ct_GNATMAKE@,$ac_ct_GNATMAKE,;t t
 s,@do_compare@,$do_compare,;t t
 s,@gmplibs@,$gmplibs,;t t
 s,@gmpinc@,$gmpinc,;t t
@@ -10501,9 +10765,7 @@ s,@STRIP@,$STRIP,;t t
 s,@WINDRES@,$WINDRES,;t t
 s,@OBJCOPY@,$OBJCOPY,;t t
 s,@OBJDUMP@,$OBJDUMP,;t t
-s,@CXX@,$CXX,;t t
 s,@CFLAGS_FOR_BUILD@,$CFLAGS_FOR_BUILD,;t t
-s,@CXXFLAGS@,$CXXFLAGS,;t t
 s,@CC_FOR_TARGET@,$CC_FOR_TARGET,;t t
 s,@CXX_FOR_TARGET@,$CXX_FOR_TARGET,;t t
 s,@GCC_FOR_TARGET@,$GCC_FOR_TARGET,;t t
diff --git a/configure.ac b/configure.ac
index b342b98889f..8cbb81356f5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1030,49 +1030,31 @@ if test -z "${CC}" && test "${build}" = "${host}" ; then
 fi
 
 if test "${build}" != "${host}" ; then
-  # If we are doing a Canadian Cross, in which the host and build systems
-  # are not the same, we set reasonable default values for the tools.
-
-  CC=${CC-${host_noncanonical}-gcc}
-  CFLAGS=${CFLAGS-"-g -O2"}
-  CXX=${CXX-${host_noncanonical}-c++}
-  CXXFLAGS=${CXXFLAGS-"-g -O2"}
   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
-
 else
-  # Set reasonable default values for some tools even if not Canadian.
-  # Of course, these are different reasonable default values, originally
-  # specified directly in the Makefile.
-  # We don't export, so that autoconf can do its job.
-  # Note that all these settings are above the fragment inclusion point
-  # in Makefile.in, so can still be overridden by fragments.
-  # This is all going to change when we autoconfiscate...
-
   CC_FOR_BUILD="\$(CC)"
-  AC_PROG_CC
-
-  # We must set the default linker to the linker used by gcc for the correct
-  # operation of libtool.  If LD is not defined and we are using gcc, try to
-  # set the LD default to the ld used by gcc.
-  if test -z "$LD"; then
-    if test "$GCC" = yes; then
-      case $build in
-      *-*-mingw*)
-	gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
-      *)
-	gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
-      esac
-      case $gcc_prog_ld in
-      # Accept absolute paths.
-      [[\\/]* | [A-Za-z]:[\\/]*)]
-        LD="$gcc_prog_ld" ;;
-      esac
-    fi
-  fi
+fi
 
-  CXX=${CXX-"c++"}
-  CFLAGS=${CFLAGS-"-g"}
-  CXXFLAGS=${CXXFLAGS-"-g -O2"}
+AC_PROG_CC
+AC_PROG_CXX
+
+# We must set the default linker to the linker used by gcc for the correct
+# operation of libtool.  If LD is not defined and we are using gcc, try to
+# set the LD default to the ld used by gcc.
+if test -z "$LD"; then
+  if test "$GCC" = yes; then
+    case $build in
+    *-*-mingw*)
+      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
+    *)
+      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
+    esac
+    case $gcc_prog_ld in
+    # Accept absolute paths.
+    [[\\/]* | [A-Za-z]:[\\/]*)]
+      LD="$gcc_prog_ld" ;;
+    esac
+  fi
 fi
 
 ACX_PROG_GNAT
@@ -1578,6 +1560,9 @@ case "$host" in
     enable_gdbtk=no ;;
 esac
 
+# To find our prefix, in gcc_cv_tool_prefix.
+ACX_TOOL_DIRS
+
 copy_dirs=
 
 AC_ARG_WITH([build-sysroot], 
@@ -1597,10 +1582,7 @@ if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
     exit 1
   fi
   if test x"${with_headers}" != xyes ; then
-    case "${exec_prefixoption}" in
-    "") x=${prefix} ;;
-    *) x=${exec_prefix} ;;
-    esac
+    x=${gcc_cv_tool_prefix}
     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
   fi
 fi
@@ -1616,10 +1598,7 @@ if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
   if test x"${with_libs}" != xyes ; then
     # Copy the libraries in reverse order, so that files in the first named
     # library override files in subsequent libraries.
-    case "${exec_prefixoption}" in
-    "") x=${prefix} ;;
-    *) x=${exec_prefix} ;;
-    esac
+    x=${gcc_cv_tool_prefix}
     for l in ${with_libs}; do
       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
     done