Merge basic-improvements-branch to trunk

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@60174 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 116 insertions, 141 deletions

diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog
index 12c566ee949..67ba194f301 100644
--- a/libf2c/ChangeLog
+++ b/libf2c/ChangeLog
@@ -1,3 +1,8 @@
+2002-11-26  Nathanael Nerode  <neroden@gcc.gnu.org>
+
+	* configure.in: Remove skip-this-dir support.
+	* configure: Regenerate.
+
 2002-11-19  Toon Moene  <toon@moene.indiv.nluug.nl>
 
 	PR fortran/8587
diff --git a/libf2c/configure b/libf2c/configure
index af8502045c8..62369f14f50 100755
--- a/libf2c/configure
+++ b/libf2c/configure
@@ -49,7 +49,6 @@ program_suffix=NONE
 program_transform_name=s,x,x,
 silent=
 site=
-sitefile=
 srcdir=
 target=NONE
 verbose=
@@ -164,7 +163,6 @@ Configuration:
   --help                  print this message
   --no-create             do not create output files
   --quiet, --silent       do not print \`checking...' messages
-  --site-file=FILE        use FILE as the site file
   --version               print the version of autoconf that created configure
 Directory and file names:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -335,11 +333,6 @@ EOF
   -site=* | --site=* | --sit=*)
     site="$ac_optarg" ;;
 
-  -site-file | --site-file | --site-fil | --site-fi | --site-f)
-    ac_prev=sitefile ;;
-  -site-file=* | --site-file=* | --site-fil=* | --site-fi=* | --site-f=*)
-    sitefile="$ac_optarg" ;;
-
   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
     ac_prev=srcdir ;;
   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
@@ -505,16 +498,12 @@ fi
 srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
 
 # Prefer explicitly selected file to automatically selected ones.
-if test -z "$sitefile"; then
-  if test -z "$CONFIG_SITE"; then
-    if test "x$prefix" != xNONE; then
-      CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
-    else
-      CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
-    fi
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
   fi
-else
-  CONFIG_SITE="$sitefile"
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
@@ -642,7 +631,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
-echo "configure:646: checking host system type" >&5
+echo "configure:635: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -663,7 +652,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
-echo "configure:667: checking target system type" >&5
+echo "configure:656: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -681,7 +670,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:685: checking build system type" >&5
+echo "configure:674: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -713,12 +702,12 @@ else
 fi
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:717: checking for Cygwin environment" >&5
+echo "configure:706: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 722 "configure"
+#line 711 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -729,7 +718,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:733: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:722: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -746,19 +735,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:750: checking for mingw32 environment" >&5
+echo "configure:739: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 755 "configure"
+#line 744 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:762: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:751: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -793,7 +782,7 @@ esac
 # be 'cp -p' if linking isn't available.
 #ac_cv_prog_LN_S='cp -p'
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:797: checking whether ln -s works" >&5
+echo "configure:786: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -849,7 +838,7 @@ fi
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:853: checking for $ac_word" >&5
+echo "configure:842: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -879,7 +868,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:883: checking for $ac_word" >&5
+echo "configure:872: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -928,7 +917,7 @@ fi
 fi
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:932: checking whether we are using GNU C" >&5
+echo "configure:921: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -937,7 +926,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:941: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:930: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -952,7 +941,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:956: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:945: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -983,7 +972,7 @@ fi
   # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
 set dummy ${ac_tool_prefix}as; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:987: checking for $ac_word" >&5
+echo "configure:976: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1015,7 +1004,7 @@ fi
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1019: checking for $ac_word" >&5
+echo "configure:1008: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1047,7 +1036,7 @@ fi
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1051: checking for $ac_word" >&5
+echo "configure:1040: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1079,7 +1068,7 @@ if test -n "$ac_tool_prefix"; then
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1083: checking for $ac_word" >&5
+echo "configure:1072: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1123,7 +1112,7 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1127: checking for a BSD compatible install" >&5
+echo "configure:1116: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1191,7 +1180,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
     
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:1195: checking for executable suffix" >&5
+echo "configure:1184: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1201,10 +1190,10 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:1205: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:1194: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
-      *.c | *.o | *.obj | *.ilk | *.pdb) ;;
+      *.$ac_ext | *.c | *.o | *.obj) ;;
       *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
       esac
     done
@@ -1231,13 +1220,13 @@ glibcpp_toolexeclibdir=no
 glibcpp_prefixdir=${prefix}
 
 echo $ac_n "checking for interface version number""... $ac_c" 1>&6
-echo "configure:1235: checking for interface version number" >&5
+echo "configure:1224: checking for interface version number" >&5
 libstdcxx_interface=$INTERFACE
 echo "$ac_t""$libstdcxx_interface" 1>&6
 
 # Process the option "--enable-version-specific-runtime-libs"
 echo $ac_n "checking for --enable-version-specific-runtime-libs""... $ac_c" 1>&6
-echo "configure:1241: checking for --enable-version-specific-runtime-libs" >&5
+echo "configure:1230: checking for --enable-version-specific-runtime-libs" >&5
 # Check whether --enable-version-specific-runtime-libs or --disable-version-specific-runtime-libs was given.
 if test "${enable_version_specific_runtime_libs+set}" = set; then
   enableval="$enable_version_specific_runtime_libs"
@@ -1284,39 +1273,6 @@ fi
 
 
 
-# If the language specific compiler does not exist, but the "gcc" directory 
-# does, we do not build anything. Note, $r is set by the top-level Makefile.
-# Note that when we look for the compiler, we search both with and without
-# extension to handle cross and canadian cross builds. 
-compiler_name=f771
-rm -f skip-this-dir
-echo $ac_n "checking if compiler $compiler_name has been built""... $ac_c" 1>&6
-echo "configure:1295: checking if compiler $compiler_name has been built" >&5
-if eval "test \"`echo '$''{'g77_cv_compiler_exists'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  g77_cv_compiler_exists=yes
-if test -n "$r"; then
-  if test -d "$r"/gcc; then
-    if test -f "$r"/gcc/$compiler_name \
-       || test -f "$r"/gcc/$compiler_name.exe; then
-      true
-    else
-      g77_cv_compiler_exists=no
-      echo "rm -f config.cache config.log multilib.out" > skip-this-dir
-    fi
-  fi
-fi
-
-fi
-
-echo "$ac_t""$g77_cv_compiler_exists" 1>&6
-if test x$g77_cv_compiler_exists = xno
-then
-  rm -f Makefile conftest* confdefs* core
-  exit 0
-fi
-
 
 # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
@@ -1399,7 +1355,7 @@ ac_prog=ld
 if test "$GCC" = yes; then
   # Check if gcc -print-prog-name=ld gives a path.
   echo $ac_n "checking for ld used by GCC""... $ac_c" 1>&6
-echo "configure:1403: checking for ld used by GCC" >&5
+echo "configure:1359: checking for ld used by GCC" >&5
   case $host in
   *-*-mingw*)
     # gcc leaves a trailing carriage return which upsets mingw
@@ -1429,10 +1385,10 @@ echo "configure:1403: checking for ld used by GCC" >&5
   esac
 elif test "$with_gnu_ld" = yes; then
   echo $ac_n "checking for GNU ld""... $ac_c" 1>&6
-echo "configure:1433: checking for GNU ld" >&5
+echo "configure:1389: checking for GNU ld" >&5
 else
   echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
-echo "configure:1436: checking for non-GNU ld" >&5
+echo "configure:1392: checking for non-GNU ld" >&5
 fi
 if eval "test \"`echo '$''{'lt_cv_path_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1467,7 +1423,7 @@ else
 fi
 test -z "$LD" && { echo "configure: error: no acceptable ld found in \$PATH" 1>&2; exit 1; }
 echo $ac_n "checking if the linker ($LD) is GNU ld""... $ac_c" 1>&6
-echo "configure:1471: checking if the linker ($LD) is GNU ld" >&5
+echo "configure:1427: checking if the linker ($LD) is GNU ld" >&5
 if eval "test \"`echo '$''{'lt_cv_prog_gnu_ld'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1484,7 +1440,7 @@ with_gnu_ld=$lt_cv_prog_gnu_ld
 
 
 echo $ac_n "checking for $LD option to reload object files""... $ac_c" 1>&6
-echo "configure:1488: checking for $LD option to reload object files" >&5
+echo "configure:1444: checking for $LD option to reload object files" >&5
 if eval "test \"`echo '$''{'lt_cv_ld_reload_flag'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1496,7 +1452,7 @@ reload_flag=$lt_cv_ld_reload_flag
 test -n "$reload_flag" && reload_flag=" $reload_flag"
 
 echo $ac_n "checking for BSD-compatible nm""... $ac_c" 1>&6
-echo "configure:1500: checking for BSD-compatible nm" >&5
+echo "configure:1456: checking for BSD-compatible nm" >&5
 if eval "test \"`echo '$''{'lt_cv_path_NM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1534,7 +1490,7 @@ NM="$lt_cv_path_NM"
 echo "$ac_t""$NM" 1>&6
 
 echo $ac_n "checking how to recognise dependant libraries""... $ac_c" 1>&6
-echo "configure:1538: checking how to recognise dependant libraries" >&5
+echo "configure:1494: checking how to recognise dependant libraries" >&5
 if eval "test \"`echo '$''{'lt_cv_deplibs_check_method'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1707,13 +1663,13 @@ file_magic_cmd=$lt_cv_file_magic_cmd
 deplibs_check_method=$lt_cv_deplibs_check_method
 
 echo $ac_n "checking for object suffix""... $ac_c" 1>&6
-echo "configure:1711: checking for object suffix" >&5
+echo "configure:1667: checking for object suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_objext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   rm -f conftest*
 echo 'int i = 1;' > conftest.$ac_ext
-if { (eval echo configure:1717: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1673: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   for ac_file in conftest.*; do
     case $ac_file in
     *.c) ;;
@@ -1737,7 +1693,7 @@ case $deplibs_check_method in
 file_magic*)
   if test "$file_magic_cmd" = '$MAGIC_CMD'; then
     echo $ac_n "checking for ${ac_tool_prefix}file""... $ac_c" 1>&6
-echo "configure:1741: checking for ${ac_tool_prefix}file" >&5
+echo "configure:1697: checking for ${ac_tool_prefix}file" >&5
 if eval "test \"`echo '$''{'lt_cv_path_MAGIC_CMD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1799,7 +1755,7 @@ fi
 if test -z "$lt_cv_path_MAGIC_CMD"; then
   if test -n "$ac_tool_prefix"; then
     echo $ac_n "checking for file""... $ac_c" 1>&6
-echo "configure:1803: checking for file" >&5
+echo "configure:1759: checking for file" >&5
 if eval "test \"`echo '$''{'lt_cv_path_MAGIC_CMD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1870,7 +1826,7 @@ esac
 # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1874: checking for $ac_word" >&5
+echo "configure:1830: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1902,7 +1858,7 @@ if test -n "$ac_tool_prefix"; then
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1906: checking for $ac_word" >&5
+echo "configure:1862: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1937,7 +1893,7 @@ fi
 # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
 set dummy ${ac_tool_prefix}strip; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1941: checking for $ac_word" >&5
+echo "configure:1897: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_STRIP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1969,7 +1925,7 @@ if test -n "$ac_tool_prefix"; then
   # Extract the first word of "strip", so it can be a program name with args.
 set dummy strip; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1973: checking for $ac_word" >&5
+echo "configure:1929: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_STRIP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2036,8 +1992,8 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 2040 "configure"' > conftest.$ac_ext
-  if { (eval echo configure:2041: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  echo '#line 1996 "configure"' > conftest.$ac_ext
+  if { (eval echo configure:1997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
     case `/usr/bin/file conftest.$ac_objext` in
     *32-bit*)
       LD="${LD-ld} -32"
@@ -2056,7 +2012,7 @@ case $host in
 ia64-*-hpux*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
-  if { (eval echo configure:2060: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  if { (eval echo configure:2016: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
     case "`/usr/bin/file conftest.o`" in
     *ELF-32*)
       HPUX_IA64_MODE="32"
@@ -2069,12 +2025,54 @@ ia64-*-hpux*)
   rm -rf conftest*
   ;;
 
+x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
+  # Find out which ABI we are using.
+  echo 'int i;' > conftest.$ac_ext
+  if { (eval echo configure:2032: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+    case "`/usr/bin/file conftest.o`" in
+    *32-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_i386"
+          ;;
+        ppc64-*linux*)
+          LD="${LD-ld} -m elf32ppclinux"
+          ;;
+        s390x-*linux*)
+          LD="${LD-ld} -m elf_s390"
+          ;;
+        sparc64-*linux*)
+          LD="${LD-ld} -m elf32_sparc"
+          ;;
+      esac
+      ;;
+    *64-bit*)
+      case $host in
+        x86_64-*linux*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        ppc*-*linux*|powerpc*-*linux*)
+          LD="${LD-ld} -m elf64ppc"
+          ;;
+        s390*-*linux*)
+          LD="${LD-ld} -m elf64_s390"
+          ;;
+        sparc*-*linux*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
 *-*-sco3.2v5*)
   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
   SAVE_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -belf"
   echo $ac_n "checking whether the C compiler needs -belf""... $ac_c" 1>&6
-echo "configure:2078: checking whether the C compiler needs -belf" >&5
+echo "configure:2076: checking whether the C compiler needs -belf" >&5
 if eval "test \"`echo '$''{'lt_cv_cc_needs_belf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2087,14 +2085,14 @@ ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$a
 cross_compiling=$ac_cv_prog_cc_cross
 
      cat > conftest.$ac_ext <<EOF
-#line 2091 "configure"
+#line 2089 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:2098: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2096: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   lt_cv_cc_needs_belf=yes
 else
@@ -2218,7 +2216,7 @@ else
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:2222: checking for $ac_word" >&5
+echo "configure:2220: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2258,7 +2256,7 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:2262: checking for a BSD compatible install" >&5
+echo "configure:2260: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2311,7 +2309,7 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:2315: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:2313: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2340,7 +2338,7 @@ fi
 
 # Sanity check for the cross-compilation case:
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:2344: checking how to run the C preprocessor" >&5
+echo "configure:2342: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -2355,13 +2353,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 2359 "configure"
+#line 2357 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2365: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2363: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2372,13 +2370,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 2376 "configure"
+#line 2374 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2382: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2380: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2389,13 +2387,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 2393 "configure"
+#line 2391 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2399: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2397: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -2421,17 +2419,17 @@ echo "$ac_t""$CPP" 1>&6
 
 ac_safe=`echo "stdio.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for stdio.h""... $ac_c" 1>&6
-echo "configure:2425: checking for stdio.h" >&5
+echo "configure:2423: checking for stdio.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2430 "configure"
+#line 2428 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2435: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2433: \"$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*
@@ -2459,12 +2457,12 @@ fi
 
 
 echo $ac_n "checking for built-in g77 integer types""... $ac_c" 1>&6
-echo "configure:2463: checking for built-in g77 integer types" >&5
+echo "configure:2461: checking for built-in g77 integer types" >&5
 if eval "test \"`echo '$''{'libf2c_cv_has_g77_builtin_types'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2468 "configure"
+#line 2466 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -2474,7 +2472,7 @@ __g77_longint g77l;
 __g77_ulongint g77ul;
 ; return 0; }
 EOF
-if { (eval echo configure:2478: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2476: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   libf2c_cv_has_g77_builtin_types=yes
 else
diff --git a/libf2c/configure.in b/libf2c/configure.in
index 8b2e26ab8e4..71f0bd7a6d6 100644
--- a/libf2c/configure.in
+++ b/libf2c/configure.in
@@ -37,34 +37,6 @@ AC_SUBST(target_alias)
 GLIBCPP_CONFIGURE(.)
 GLIBCPP_EXPORT_INSTALL_INFO
 
-# If the language specific compiler does not exist, but the "gcc" directory 
-# does, we do not build anything. Note, $r is set by the top-level Makefile.
-# Note that when we look for the compiler, we search both with and without
-# extension to handle cross and canadian cross builds. 
-compiler_name=f771
-rm -f skip-this-dir
-AC_MSG_CHECKING(if compiler $compiler_name has been built)
-AC_CACHE_VAL(g77_cv_compiler_exists,
-[g77_cv_compiler_exists=yes
-if test -n "$r"; then
-  if test -d "$r"/gcc; then
-    if test -f "$r"/gcc/$compiler_name \
-       || test -f "$r"/gcc/$compiler_name.exe; then
-      true
-    else
-      g77_cv_compiler_exists=no
-      echo "rm -f config.cache config.log multilib.out" > skip-this-dir
-    fi
-  fi
-fi
-])
-AC_MSG_RESULT($g77_cv_compiler_exists)
-if test x$g77_cv_compiler_exists = xno
-then
-  rm -f Makefile conftest* confdefs* core
-  exit 0
-fi
-
 dnl Checks for programs.
 
 AM_PROG_LIBTOOL
diff --git a/libf2c/libI77/config.h.in b/libf2c/libI77/config.h.in
index 3ae78d198ad..63aacb5d5e1 100644
--- a/libf2c/libI77/config.h.in
+++ b/libf2c/libI77/config.h.in
@@ -1,4 +1,4 @@
-/* config.h.in.  Generated automatically from configure.in by autoheader.  */
+/* config.h.in.  Generated automatically from configure.in by autoheader 2.13.  */
 
 /* Define to empty if the keyword does not work.  */
 #undef const
diff --git a/libf2c/libU77/config.hin b/libf2c/libU77/config.hin
index 9848d06b0ec..b0b97719b30 100644
--- a/libf2c/libU77/config.hin
+++ b/libf2c/libU77/config.hin
@@ -1,4 +1,4 @@
-/* config.hin.  Generated automatically from configure.in by autoheader.  */
+/* config.hin.  Generated automatically from configure.in by autoheader 2.13.  */
 
 /* Define to empty if the keyword does not work.  */
 #undef const