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* trans-stmt.c (gfc_trans_forall_1): Prefer to use smaller logical
[pf3gnuchains/gcc-fork.git] / gcc / configure.ac
index 46886fb..f93d8a3 100644 (file)
@@ -18,8 +18,8 @@
 
 #You should have received a copy of the GNU General Public License
 #along with GCC; see the file COPYING.  If not, write to the Free
-#Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-#02111-1307, USA.
+#Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+#02110-1301, USA.
 
 # --------------------------------
 # Initialization and sanity checks
@@ -30,6 +30,8 @@ AC_INIT
 AC_CONFIG_SRCDIR(tree.c)
 AC_CONFIG_HEADER(auto-host.h:config.in)
 
+gcc_version=`cat $srcdir/BASE-VER`
+
 # Determine the host, build, and target systems
 AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
@@ -283,19 +285,13 @@ AC_SUBST(OUTPUT_OPTION)
 AC_PROG_CPP
 AC_C_INLINE
 
-gcc_AC_C_LONG_LONG
-
 # sizeof(char) is 1 by definition.
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(short)
 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
-if test $ac_cv_c_long_long = yes; then
-  AC_CHECK_SIZEOF(long long)
-fi
-if test $ac_cv_c___int64 = yes; then
-  AC_CHECK_SIZEOF(__int64)
-fi
+AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
+AC_CHECK_TYPES([__int64], [AC_CHECK_SIZEOF(__int64)])
 
 # ---------------------
 # Warnings and checking
@@ -393,8 +389,9 @@ AC_ARG_ENABLE(checking,
 [  --enable-checking[=LIST]
                          enable expensive run-time checks.  With LIST,
                          enable only specific categories of checks.
-                         Categories are: assert,fold,gc,gcac,misc,
-                         rtlflag,rtl,runtime,tree,valgrind,release,yes,all;],
+                         Categories are: yes,no,all,none,release.
+                         Flags are: assert,fold,gc,gcac,misc,
+                         rtlflag,rtl,runtime,tree,valgrind.],
 [ac_checking_flags="${enableval}"],[
 # Determine the default checks.
 if test x$is_release = x ; then
@@ -404,40 +401,50 @@ else
 fi])
 ac_assert_checking=1
 ac_checking=
-ac_tree_checking=
+ac_fold_checking=
+ac_gc_checking=
+ac_gc_always_collect=
 ac_rtl_checking=
 ac_rtlflag_checking=
 ac_runtime_checking=1
-ac_gc_checking=
-ac_gc_always_collect=
-ac_fold_checking=
+ac_tree_checking=
+ac_valgrind_checking=
 IFS="${IFS=    }"; ac_save_IFS="$IFS"; IFS="$IFS,"
 for check in $ac_checking_flags
 do
        case $check in
+       # these set all the flags to specific states
        yes)            ac_assert_checking=1 ; ac_checking=1 ;
-                       ac_tree_checking=1 ; ac_gc_checking=1 ;
-                       ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;;
-       no)             ac_assert_checking= ; ac_checking= ;
-                       ac_tree_checking= ; ac_rtl_checking= ;
-                       ac_rtlflag_checking= ; ac_gc_checking= ;
-                       ac_gc_always_collect= ; ac_fold_checking= ;;
+                       ac_fold_checking= ; ac_gc_checking=1 ;
+                       ac_gc_always_collect= ; ac_rtl_checking= ;
+                       ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
+                       ac_tree_checking=1 ; ac_valgrind_checking= ;;
+       no|none)        ac_assert_checking= ; ac_checking= ;
+                       ac_fold_checking= ; ac_gc_checking= ;
+                       ac_gc_always_collect= ; ac_rtl_checking= ;
+                       ac_rtlflag_checking= ; ac_runtime_checking= ;
+                       ac_tree_checking= ; ac_valgrind_checking= ;;
        all)            ac_assert_checking=1 ; ac_checking=1 ;
-                       ac_tree_checking=1 ; ac_rtl_checking=1 ;
-                       ac_rtlflag_checking=1 ; ac_runtime_checking=1;
-                       ac_gc_checking=1 ; ac_gc_always_collect=1 ;
-                       ac_fold_checking=1 ;;
-        release)       ac_assert_checking=1 ; ac_runtime_checking=1 ;;
+                       ac_fold_checking=1 ; ac_gc_checking=1 ;
+                       ac_gc_always_collect=1 ; ac_rtl_checking=1 ;
+                       ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
+                       ac_tree_checking=1 ; ac_valgrind_checking= ;;
+       release)        ac_assert_checking=1 ; ac_checking= ;
+                       ac_fold_checking= ; ac_gc_checking= ;
+                       ac_gc_always_collect= ; ac_rtl_checking= ;
+                       ac_rtlflag_checking= ; ac_runtime_checking=1 ;
+                       ac_tree_checking= ; ac_valgrind_checking= ;;
+       # these enable particular checks
        assert)         ac_assert_checking=1 ;;
        fold)           ac_fold_checking=1 ;;
        gc)             ac_gc_checking=1 ;;
        gcac)           ac_gc_always_collect=1 ;;
        misc)           ac_checking=1 ;;
-       rtlflag)        ac_rtlflag_checking=1 ;;
        rtl)            ac_rtl_checking=1 ;;
+       rtlflag)        ac_rtlflag_checking=1 ;;
        runtime)        ac_runtime_checking=1 ;;
        tree)           ac_tree_checking=1 ;;
-       valgrind)       ac_checking_valgrind=1 ;;
+       valgrind)       ac_valgrind_checking=1 ;;
        *)      AC_MSG_ERROR(unknown check category $check) ;;
        esac
 done
@@ -455,6 +462,7 @@ if test x$ac_assert_checking != x ; then
   AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
 [Define if you want assertions enabled.  This is a cheap check.])
 fi
+GCC_TARGET_TEMPLATE(ENABLE_RUNTIME_CHECKING)
 if test x$ac_runtime_checking != x ; then
   AC_DEFINE(ENABLE_RUNTIME_CHECKING, 1,
 [Define if you want runtime assertions enabled.  This is a cheap check.])
@@ -505,7 +513,7 @@ dnl # an if statement.  This was the source of very frustrating bugs
 dnl # in converting to autoconf 2.5x!
 AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
 
-if test x$ac_checking_valgrind != x ; then
+if test x$ac_valgrind_checking != x ; then
   # It is certainly possible that there's valgrind but no valgrind.h.
   # GCC relies on making annotations so we must have both.
   AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
@@ -882,7 +890,7 @@ AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 
 # These tests can't be done till we know if we have limits.h.
 gcc_AC_C_CHAR_BIT
-AC_C_BIGENDIAN_CROSS
+AC_C_BIGENDIAN
 
 # --------
 # UNSORTED
@@ -966,11 +974,15 @@ fi
 dnl Disabled until we have a complete test for buggy enum bitfields.
 dnl gcc_AC_C_ENUM_BF_UNSIGNED
 
+define(gcc_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
+  ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
+  fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
+  fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
+  putchar_unlocked putc_unlocked)
 AC_CHECK_FUNCS(times clock dup2 kill getrlimit setrlimit atoll atoq \
-       sysconf strsignal putc_unlocked fputc_unlocked fputs_unlocked \
-       fwrite_unlocked fprintf_unlocked getrusage nl_langinfo \
-        scandir alphasort gettimeofday mbstowcs wcswidth mmap mincore \
-        setlocale)
+       sysconf strsignal getrusage nl_langinfo scandir alphasort \
+       gettimeofday mbstowcs wcswidth mmap mincore setlocale \
+       gcc_UNLOCKED_FUNCS)
 
 if test x$ac_cv_func_mbstowcs = xyes; then
   AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
@@ -1037,10 +1049,9 @@ AM_LANGINFO_CODESET
 # We will need to find libiberty.h and ansidecl.h
 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include"
-gcc_AC_CHECK_DECLS(getenv atol sbrk abort atof getcwd getwd \
-       strsignal putc_unlocked fputs_unlocked fwrite_unlocked \
-        fprintf_unlocked strstr errno snprintf vasprintf \
-       malloc realloc calloc free basename getopt clock getpagesize, , ,[
+gcc_AC_CHECK_DECLS(getenv atol asprintf sbrk abort atof getcwd getwd strsignal \
+       strstr errno snprintf vsnprintf vasprintf malloc realloc calloc \
+       free basename getopt clock getpagesize gcc_UNLOCKED_FUNCS, , ,[
 #include "ansidecl.h"
 #include "system.h"])
 
@@ -1388,7 +1399,7 @@ host_xm_file="auto-host.h ansidecl.h ${host_xm_file}"
 build_xm_file="${build_auto} ansidecl.h ${build_xm_file}"
 # We don't want ansidecl.h in target files, write code there in ISO/GNU C.
 # put this back in temporarily.
-xm_file="ansidecl.h ${xm_file}"
+xm_file="auto-host.h ansidecl.h ${xm_file}"
 
 # --------
 # UNSORTED
@@ -1432,6 +1443,10 @@ case "$LIBINTL" in *$LIBICONV*)
        LIBICONV= ;;
 esac
 
+AC_ARG_ENABLE(secureplt,
+[  --enable-secureplt      enable -msecure-plt by default for PowerPC],
+[], [])
+
 # Windows32 Registry support for specifying GCC installation paths.
 AC_ARG_ENABLE(win32-registry,
 [  --disable-win32-registry
@@ -1679,7 +1694,7 @@ then
     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
 
     if test "x$TARGET_SYSTEM_ROOT" = x; then
-       if [ "x$STMP_FIXPROTO" != x ] ; then
+       if test "x$STMP_FIXPROTO" != x; then
          STMP_FIXPROTO=stmp-install-fixproto
        fi
     fi
@@ -1726,7 +1741,6 @@ esac
 # If build != host, and we aren't building gas in-tree, we identify a
 # build->target assembler and hope that it will have the same features
 # as the host->target assembler we'll be using.
-AC_MSG_CHECKING(what assembler to use)
 in_tree_gas=no
 gcc_cv_as=
 gcc_cv_gas_major_version=
@@ -1734,9 +1748,6 @@ gcc_cv_gas_minor_version=
 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
 if test -x "$DEFAULT_ASSEMBLER"; then
        gcc_cv_as="$DEFAULT_ASSEMBLER"
-elif test -x as$build_exeext; then
-       # Build using assembler in the current directory.
-       gcc_cv_as=./as$build_exeext
 elif test -f $gcc_cv_as_gas_srcdir/configure.in \
      && test -f ../gas/Makefile \
      && test x$build = x$host; then
@@ -1745,8 +1756,7 @@ elif test -f $gcc_cv_as_gas_srcdir/configure.in \
   # we'll use what we're building after installation anyway.
   in_tree_gas=yes
   _gcc_COMPUTE_GAS_VERSION
-  rm -f as$build_exeext
-  $LN_S ../gas/as-new$build_exeext as$build_exeext 2>/dev/null
+  gcc_cv_as=../gas/as-new$build_exeext
   in_tree_gas_is_elf=no
   if grep 'obj_format = elf' ../gas/Makefile > /dev/null \
      || (grep 'obj_format = multi' ../gas/Makefile \
@@ -1755,79 +1765,17 @@ elif test -f $gcc_cv_as_gas_srcdir/configure.in \
     in_tree_gas_is_elf=yes
   fi
 m4_pattern_allow([AS_FOR_TARGET])dnl
+elif test -x as$build_exeext; then
+       # Build using assembler in the current directory.
+       gcc_cv_as=./as$build_exeext
 elif test -x "$AS_FOR_TARGET"; then
         gcc_cv_as="$AS_FOR_TARGET"
 elif test -x "$AS" && test x$host = x$target; then
        gcc_cv_as="$AS"
 fi
 
-gcc_version=`cat $srcdir/BASE-VER`
-
-if test "x$gcc_cv_as" = x; then
-       # Search the same directories that the installed compiler will
-       # search.  Else we may find the wrong assembler and lose.  If we
-       # do not find a suitable assembler binary, then try the user's
-       # path.
-       #
-       # Also note we have to check MD_EXEC_PREFIX before checking the
-       # user's path.  Unfortunately, there is no good way to get at the
-       # value of MD_EXEC_PREFIX here.  So we do a brute force search
-       # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
-       # to be fixed as part of the make/configure rewrite too.
-
-       if test "x$exec_prefix" = xNONE; then
-               if test "x$prefix" = xNONE; then
-                       test_prefix=/usr/local
-               else
-                       test_prefix=$prefix
-               fi
-       else
-               test_prefix=$exec_prefix
-       fi
-
-       # If the loop below does not find an assembler, then use whatever
-       # one we can find in the users's path.  We are looking for a
-       # ${build} -> ${target} assembler.
-       if test "x$program_prefix" != xNONE; then
-               gcc_cv_as=${program_prefix}as$build_exeext
-       elif test x$build != x$host && test x$build != x$target; then
-               gcc_cv_as=${target_noncanonical}-as$build_exeext
-       else
-               gcc_cv_as=`echo as | sed "${program_transform_name}"`$build_exeext
-       fi
-
-       if test x$host = x$build; then
-           test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
-                      $test_prefix/libexec/gcc/$target_noncanonical \
-                      /usr/lib/gcc/$target_noncanonical/$gcc_version \
-                      /usr/lib/gcc/$target_noncanonical \
-                      $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
-                      $test_prefix/$target_noncanonical/bin"
-       else
-           test_dirs=
-       fi
-
-       if test x$build = x$target; then
-           test_dirs="$test_dirs \
-                  /usr/libexec \
-                  /usr/ccs/gcc \
-                  /usr/ccs/bin \
-                  /udk/usr/ccs/bin \
-                  /bsd43/usr/lib/cmplrs/cc \
-                  /usr/cross64/usr/bin \
-                  /usr/lib/cmplrs/cc \
-                  /sysv/usr/lib/cmplrs/cc \
-                  /svr4/usr/lib/cmplrs/cc \
-                  /usr/bin"
-       fi
-
-       for dir in $test_dirs; do
-               if test -x $dir/as$build_exeext; then
-                       gcc_cv_as=$dir/as$build_exeext
-                       break;
-               fi
-       done
-fi
+gcc_AC_CHECK_TOOL(gcc_cv_as, as, ORIGINAL_AS_FOR_TARGET)
+AC_MSG_CHECKING(what assembler to use)
 case $in_tree_gas in
   yes)
     AC_MSG_RESULT("newly built gas")
@@ -1844,7 +1792,6 @@ esac
 # If build != host, and we aren't building gas in-tree, we identify a
 # build->target linker and hope that it will have the same features
 # as the host->target linker we'll be using.
-AC_MSG_CHECKING(what linker to use)
 in_tree_ld=no
 gcc_cv_ld=
 gcc_cv_gld_major_version=
@@ -1853,9 +1800,6 @@ gcc_cv_ld_gld_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/ld
 gcc_cv_ld_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
 if test -x "$DEFAULT_LINKER"; then
        gcc_cv_ld="$DEFAULT_LINKER"
-elif test -x collect-ld$build_exeext; then
-       # Build using linker in the current directory.
-       gcc_cv_ld=./collect-ld$build_exeext
 elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
      && test -f ../ld/Makefile \
      && test x$build = x$host; then
@@ -1882,79 +1826,18 @@ changequote(,)dnl
        gcc_cv_gld_major_version=`expr "$gcc_cv_gld_version" : "VERSION=\([0-9]*\)"`
        gcc_cv_gld_minor_version=`expr "$gcc_cv_gld_version" : "VERSION=[0-9]*\.\([0-9]*\)"`
 changequote([,])dnl
-       rm -f collect-ld$build_exeext
-       $LN_S ../ld/ld-new$build_exeext collect-ld$build_exeext 2>/dev/null
+       gcc_cv_ld=../ld/ld-new$build_exeext
+elif test -x collect-ld$build_exeext; then
+       # Build using linker in the current directory.
+       gcc_cv_ld=./collect-ld$build_exeext
 elif test -x "$LD_FOR_TARGET"; then
         gcc_cv_ld="$LD_FOR_TARGET"
 elif test -x "$LD" && test x$host = x$target; then
        gcc_cv_ld="$LD"
 fi
 
-if test "x$gcc_cv_ld" = x; then
-       # Search the same directories that the installed compiler will
-       # search.  Else we may find the wrong linker and lose.  If we
-       # do not find a suitable linker binary, then try the user's
-       # path.
-       #
-       # Also note we have to check MD_EXEC_PREFIX before checking the
-       # user's path.  Unfortunately, there is no good way to get at the
-       # value of MD_EXEC_PREFIX here.  So we do a brute force search
-       # through all the known MD_EXEC_PREFIX values.  Ugh.  This needs
-       # to be fixed as part of the make/configure rewrite too.
-
-       if test "x$exec_prefix" = xNONE; then
-               if test "x$prefix" = xNONE; then
-                       test_prefix=/usr/local
-               else
-                       test_prefix=$prefix
-               fi
-       else
-               test_prefix=$exec_prefix
-       fi
-
-       # If the loop below does not find a linker, then use whatever
-       # one we can find in the users's path.  We are looking for a
-       # ${build} -> ${target} linker.
-       if test "x$program_prefix" != xNONE; then
-               gcc_cv_ld=${program_prefix}ld$build_exeext
-       elif test x$build != x$host && test x$build != x$target; then
-               gcc_cv_ld=${target_noncanonical}-ld$build_exeext
-       else
-               gcc_cv_ld=`echo ld | sed "${program_transform_name}"`$build_exeext
-       fi
-
-       if test x$host = x$build; then
-           test_dirs="$test_prefix/libexec/gcc/$target_noncanonical/$gcc_version \
-                      $test_prefix/libexec/gcc/$target_noncanonical \
-                      /usr/lib/gcc/$target_noncanonical/$gcc_version \
-                      /usr/lib/gcc/$target_noncanonical \
-                      $test_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version \
-                      $test_prefix/$target_noncanonical/bin"
-       else
-           test_dirs=
-       fi
-
-       if test x$build = x$target; then
-           test_dirs="$test_dirs \
-                  /usr/libexec \
-                  /usr/ccs/gcc \
-                  /usr/ccs/bin \
-                  /udk/usr/ccs/bin \
-                  /bsd43/usr/lib/cmplrs/cc \
-                  /usr/cross64/usr/bin \
-                  /usr/lib/cmplrs/cc \
-                  /sysv/usr/lib/cmplrs/cc \
-                  /svr4/usr/lib/cmplrs/cc \
-                  /usr/bin"
-       fi
-
-       for dir in $test_dirs; do
-               if test -x $dir/ld$build_exeext; then
-                       gcc_cv_ld=$dir/ld$build_exeext
-                       break;
-               fi
-       done
-fi
+gcc_AC_CHECK_TOOL(gcc_cv_ld, ld, ORIGINAL_LD_FOR_TARGET)
+AC_MSG_CHECKING(what linker to use)
 case $in_tree_ld in
   yes)
     AC_MSG_RESULT("newly built ld")
@@ -1966,24 +1849,19 @@ esac
 
 # Figure out what nm we will be using.
 gcc_cv_binutils_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/binutils
-AC_MSG_CHECKING(what nm to use)
 in_tree_nm=no
-if test -x nm$build_exeext; then
-       gcc_cv_nm=./nm$build_exeext
-elif test -f $gcc_cv_binutils_srcdir/configure.in \
+gcc_cv_nm=
+if test -f $gcc_cv_binutils_srcdir/configure.in \
      && test -f ../binutils/Makefile; then
        # Single tree build which includes binutils.
        in_tree_nm=yes
+       gcc_cv_nm=../binutils/nm-new$build_exeext
+elif test -x nm$build_exeext; then
        gcc_cv_nm=./nm$build_exeext
-       rm -f nm$build_exeext
-       $LN_S ../binutils/nm-new$build_exeext nm$build_exeext 2>/dev/null
-elif test "x$program_prefix" != xNONE; then
-       gcc_cv_nm=${program_prefix}nm$build_exeext
-elif test x$build != x$host && test x$build != x$target; then
-       gcc_cv_nm=${target_noncanonical}-nm$build_exeext
-else
-       gcc_cv_nm=`echo nm | sed "${program_transform_name}"`$build_exeext
 fi
+
+gcc_AC_CHECK_TOOL(gcc_cv_nm, nm, ORIGINAL_NM_FOR_TARGET)
+AC_MSG_CHECKING(what nm to use)
 case $in_tree_nm in
   yes) AC_MSG_RESULT("newly built nm") ;;
   no)  AC_MSG_RESULT($gcc_cv_nm) ;;
@@ -1998,9 +1876,7 @@ elif test -f $gcc_cv_binutils_srcdir/configure.in \
      && test -f ../binutils/Makefile; then
        # Single tree build which includes binutils.
        in_tree_objdump=yes
-       gcc_cv_objdump=./objdump$build_exeext
-       rm -f objdump$build_exeext
-       $LN_S ../binutils/objdump$build_exeext objdump$build_exeext 2>/dev/null
+       gcc_cv_objdump=../binutils/objdump$build_exeext
 elif test "x$program_prefix" != xNONE; then
        gcc_cv_objdump=${program_prefix}objdump$build_exeext
 elif test x$build != x$host && test x$build != x$target; then
@@ -2089,8 +1965,12 @@ changequote(,)dnl
        -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)$,\1,p' \
        -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\)[  ].*$,\1,p' \
        -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[     ].*$,\1,p' \
-       -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[        ].*$,\1,p'`
+       -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[       ].*$,\1,p' \
+       -e 's,^.*[       ]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\)[   ].*$,\1,p'`
     ld_date=`echo $ld_ver | sed -n 's,^.*\([2-9][0-9][0-9][0-9]\)[-]*\([01][0-9]\)[-]*\([0-3][0-9]\).*$,\1\2\3,p'`
+    ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
+    ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
+    ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
     if test 0"$ld_date" -lt 20020404; then
       if test -n "$ld_date"; then
        # If there was date string, but was earlier than 2002-04-04, fail
@@ -2099,9 +1979,6 @@ changequote(,)dnl
        # If there was no date string nor ld version number, something is wrong
        gcc_cv_ld_hidden=no
       else
-       ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
-       ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
-       ld_vers_patch=`expr "$ld_vers" : '[0-9]*\.[0-9]*\.\([0-9]*\)'`
        test -z "$ld_vers_patch" && ld_vers_patch=0
        if test "$ld_vers_major" -lt 2; then
          gcc_cv_ld_hidden=no
@@ -2126,6 +2003,7 @@ changequote([,])dnl
 fi])
 libgcc_visibility=no
 AC_SUBST(libgcc_visibility)
+GCC_TARGET_TEMPLATE([HAVE_GAS_HIDDEN])
 if test $gcc_cv_as_hidden = yes && test $gcc_cv_ld_hidden = yes; then
   libgcc_visibility=yes
   AC_DEFINE(HAVE_GAS_HIDDEN, 1,
@@ -2242,18 +2120,35 @@ AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
 [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
 
 gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
- [elf,2,15,91], [--fatal-warnings],
+ [elf,2,16,0], [--fatal-warnings],
  [.section .text,"axG",@progbits,.foo,comdat])
 if test $gcc_cv_as_comdat_group = yes; then
   gcc_cv_as_comdat_group_percent=no
 else
  gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
-   [elf,2,15,91], [--fatal-warnings],
+   [elf,2,16,0], [--fatal-warnings],
    [.section .text,"axG",%progbits,.foo,comdat])
 fi
-AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
+if test $in_tree_ld != yes && test x"$ld_vers" != x; then
+  comdat_group=yes
+  if test 0"$ld_date" -lt 20050308; then
+    if test -n "$ld_date"; then
+      # If there was date string, but was earlier than 2005-03-08, fail
+      comdat_group=no
+    elif test "$ld_vers_major" -lt 2; then
+      comdat_group=no
+    elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 16; then
+      comdat_group=no
+    fi
+  fi
+  if test $comdat_group = no; then
+    gcc_cv_as_comdat_group=no
+    gcc_cv_as_comdat_group_percent=no
+  fi
+fi
+AC_DEFINE_UNQUOTED(HAVE_COMDAT_GROUP,
   [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
-[Define 0/1 if your assembler supports COMDAT group.])
+[Define 0/1 if your assembler and linker support COMDAT groups.])
 
 # Thread-local storage - the check is heavily parametrized.
 conftest_s=
@@ -2609,6 +2504,14 @@ case "$target" in
        lda     $29, 0($29)     !gpdisp!3],,
     [AC_DEFINE(HAVE_AS_EXPLICIT_RELOCS, 1,
   [Define if your assembler supports explicit relocations.])])
+    gcc_GAS_CHECK_FEATURE([jsrdirect relocation support],
+       gcc_cv_as_alpha_jsrdirect_relocs, [2,16,90],,
+[      .set nomacro
+       .text
+       ldq     $27, a($29)     !literal!1
+       jsr     $26, ($27), a   !lituse_jsrdirect!1],,
+    [AC_DEFINE(HAVE_AS_JSRDIRECT_RELOCS, 1,
+  [Define if your assembler supports the lituse_jsrdirect relocation.])])
     ;;
 
   cris-*-*)
@@ -2754,7 +2657,8 @@ foo:      nop
 
   powerpc*-*-*)
     case $target in
-      *-*-aix*) conftest_s='   .csect .text[[PR]]
+      *-*-aix*) conftest_s='   .machine "pwr5"
+       .csect .text[[PR]]
        mfcr 3,128';;
       *-*-darwin*)
        gcc_GAS_CHECK_FEATURE([.machine directive support],
@@ -2777,6 +2681,40 @@ foo:     nop
       [$conftest_s],,
       [AC_DEFINE(HAVE_AS_MFCRF, 1,
          [Define if your assembler supports mfcr field.])])
+
+    case $target in
+      *-*-aix*) conftest_s='   .machine "pwr5"
+       .csect .text[[PR]]
+       popcntb 3,3';;
+      *) conftest_s='  .machine power5
+       .text
+       popcntb 3,3';;
+    esac
+
+    gcc_GAS_CHECK_FEATURE([popcntb support],
+      gcc_cv_as_powerpc_popcntb, [2,17,0],,
+      [$conftest_s],,
+      [AC_DEFINE(HAVE_AS_POPCNTB, 1,
+         [Define if your assembler supports popcntb field.])])
+
+    case $target in
+      *-*-aix*) conftest_s='   .csect .text[[PR]]
+LCF..0:
+       addis 11,30,_GLOBAL_OFFSET_TABLE_-LCF..0@ha';;
+      *-*-darwin*)
+       conftest_s='    .text
+LCF0:
+       addis r11,r30,_GLOBAL_OFFSET_TABLE_-LCF0@ha';;
+      *) conftest_s='  .text
+.LCF0:
+       addis 11,30,_GLOBAL_OFFSET_TABLE_-.LCF0@ha';;
+    esac
+
+    gcc_GAS_CHECK_FEATURE([rel16 relocs],
+      gcc_cv_as_powerpc_rel16, [2,17,0], -a32,
+      [$conftest_s],,
+      [AC_DEFINE(HAVE_AS_REL16, 1,
+         [Define if your assembler supports R_PPC_REL16 relocs.])])
     ;;
 
   mips*-*-*)
@@ -2920,6 +2858,7 @@ elif test x$gcc_cv_ld != x; then
                gcc_cv_ld_eh_frame_hdr=yes
        fi
 fi
+GCC_TARGET_TEMPLATE([HAVE_LD_EH_FRAME_HDR])
 if test x"$gcc_cv_ld_eh_frame_hdr" = xyes; then
        AC_DEFINE(HAVE_LD_EH_FRAME_HDR, 1,
 [Define if your linker supports --eh-frame-hdr option.])
@@ -3010,6 +2949,23 @@ EOF
     ;;
 esac
 
+AC_CACHE_CHECK(linker --sysroot support,
+  gcc_cv_ld_sysroot,
+  [gcc_cv_ld_sysroot=no
+  if test $in_tree_ld = yes ; then
+      if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then
+        gcc_cv_ld_sysroot=yes
+      fi
+  elif test x$gcc_cv_ld != x; then 
+    if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then
+      gcc_cv_ld_sysroot=yes
+    fi
+  fi])
+if test x"$gcc_cv_ld_sysroot" = xyes; then
+  AC_DEFINE(HAVE_LD_SYSROOT, 1,
+  [Define if your linker supports --sysroot.])
+fi       
+
 if test x$with_sysroot = x && test x$host = x$target \
    && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
   AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",