X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=configure.in;h=094e910131ecbfc5793026d32cae82c7246ad7cd;hp=d3fec41ecf574655d7a9d7be4f7d8f3be79ace38;hb=dff2f6650bae91d28851542d0aee478f8fc5d1ca;hpb=768691b5889868443d9cf16377c155fea70cc9e1

diff --git a/configure.in b/configure.in
index d3fec41ecf5..094e910131e 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,5 @@
-#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-#   1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 #
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -123,7 +123,7 @@ build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fix
 
 # these libraries are used by various programs built for the host environment
 #
-host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp"
+host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 
 # these tools are built for the host environment
 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
@@ -134,7 +134,6 @@ host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb
 
 # libgcj represents the runtime libraries only used by gcj.
 libgcj="target-libffi \
-	target-boehm-gc \
 	target-zlib \
 	target-qthreads \
 	target-libjava"
@@ -149,9 +148,11 @@ target_libraries="target-libiberty \
 		target-libmudflap \
 		target-libssp \
 		target-libgfortran \
+		target-boehm-gc \
 		${libgcj} \
 		target-libobjc \
-		target-libada"
+		target-libada \
+		target-libgomp"
 
 # these tools are built using the target libraries, and are intended to
 # run only in the target environment
@@ -225,7 +226,7 @@ esac
 
 # Some tools are only suitable for building in a "native" situation.
 # Remove these if host!=target.  
-native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
+native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 
 # Similarly, some are only suitable for cross toolchains.
 # Remove these if host=target.
@@ -278,7 +279,7 @@ case "${host}" in
     ;;
   i[[3456789]]86-*-mingw32*)
     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
-    noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
+    noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
     ;;
   i[[3456789]]86-*-beos*)
     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
@@ -303,7 +304,6 @@ AC_ARG_ENABLE(libada,
 ENABLE_LIBADA=$enableval,
 ENABLE_LIBADA=yes)
 if test "${ENABLE_LIBADA}" != "yes" ; then
-  noconfigdirs="$noconfigdirs target-libada"
   noconfigdirs="$noconfigdirs gnattools"
 fi
 
@@ -311,9 +311,6 @@ AC_ARG_ENABLE(libssp,
 [  --enable-libssp        Builds libssp directory],
 ENABLE_LIBSSP=$enableval,
 ENABLE_LIBSSP=yes)
-if test "${ENABLE_LIBSSP}" != "yes" ; then
-  noconfigdirs="$noconfigdirs target-libssp"
-fi
 
 # Save it here so that, even in case of --enable-libgcj, if the Java
 # front-end isn't enabled, we still get libgcj disabled.
@@ -332,16 +329,10 @@ no)
 esac
 
 
-# Allow --disable-libmudflap to exclude target-libmudflap
-case $enable_libmudflap in
-yes)
-    ;;
-no)
-    noconfigdirs="$noconfigdirs target-libmudflap"
-    ;;
-"")
+# Disable libmudflap on some systems.
+if test x$enable_libmudflap = x ; then
     case "${target}" in
-    *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
+    *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
         # Enable libmudflap by default in GNU and friends.
 	;;
     *-*-freebsd*)
@@ -352,7 +343,25 @@ no)
 	noconfigdirs="$noconfigdirs target-libmudflap"
 	;;
     esac
-esac
+fi
+
+# Disable libgomp on non POSIX hosted systems.
+if test x$enable_libgomp = x ; then
+    # Enable libgomp by default on hosted POSIX systems.
+    case "${target}" in
+    *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
+	;;
+    *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
+	;;
+    *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
+	;;
+    *-*-darwin* | *-*-aix*)
+	;;
+    *)
+	noconfigdirs="$noconfigdirs target-libgomp"
+	;;
+    esac
+fi
 
 
 case "${target}" in
@@ -364,7 +373,7 @@ case "${target}" in
     noconfigdirs="$noconfigdirs sim target-rda"
     ;;
   *-*-darwin*)
-    noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
+    noconfigdirs="$noconfigdirs ld gas gdb gprof"
     noconfigdirs="$noconfigdirs sim target-rda"
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
@@ -421,10 +430,7 @@ case "${target}" in
     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
     ;;
   *-*-vxworks*)
-    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
-    ;;
-  m32c-*-*)
-    noconfigdirs="$noconfigdirs target-libstdc++-v3"
+    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
     ;;
   alpha*-dec-osf*)
     # ld works, but does not support shared libraries.
@@ -475,6 +481,10 @@ case "${target}" in
   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
     ;;
+  arm*-*-linux-gnueabi)
+    noconfigdirs="$noconfigdirs target-libffi target-qthreads"
+    noconfigdirs="$noconfigdirs target-libjava target-libobjc"
+    ;;
   arm*-*-symbianelf*)
     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
     ;;
@@ -496,6 +506,12 @@ case "${target}" in
   avr-*-*)
     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
     ;;
+  bfin-*-*)
+    noconfigdirs="$noconfigdirs gdb"
+    if test x${is_cross_compiler} != xno ; then
+      target_configdirs="${target_configdirs} target-bsp target-cygmon"
+    fi
+    ;;
   c4x-*-* | tic4x-*-*)
     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
     ;;
@@ -506,15 +522,15 @@ case "${target}" in
     unsupported_languages="$unsupported_languages java"
     case "${target}" in
       *-*-aout)
-	unsupported_languages="$unsupported_languages f95"
+	unsupported_languages="$unsupported_languages fortran"
 	noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
       *-*-elf)
-	unsupported_languages="$unsupported_languages f95"
+	unsupported_languages="$unsupported_languages fortran"
 	noconfigdirs="$noconfigdirs target-boehm-gc";;
       *-*-linux*)
 	noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
       *)
-	unsupported_languages="$unsupported_languages f95"
+	unsupported_languages="$unsupported_languages fortran"
 	noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
     esac
     ;;
@@ -555,6 +571,9 @@ case "${target}" in
   hppa*64*-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
+  hppa*-hp-hpux11*)
+    noconfigdirs="$noconfigdirs ld shellutils"
+    ;;
   hppa*-*-*)
     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
     # build on HP-UX 10.20.
@@ -596,32 +615,18 @@ case "${target}" in
     # 'target-newlib' will appear in skipdirs.
     ;;
   i[[3456789]]86-*-mingw32*)
-    target_configdirs="$target_configdirs target-mingw"
-    noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
-
-    # Can't build gdb for mingw32 if not native.
-    case "${host}" in
-      i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
-      *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
-         ;;
-    esac
+    target_configdirs="$target_configdirs target-winsup"
+    noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
     ;;    
   *-*-cygwin*)
     target_configdirs="$target_configdirs target-libtermcap target-winsup"
     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
     # always build newlib if winsup directory is present.
-    if test -d "$srcdir/winsup"; then
+    if test -d "$srcdir/winsup/cygwin"; then
       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
     elif test -d "$srcdir/newlib"; then
-      echo "Warning: winsup is missing so newlib can't be built."
+      echo "Warning: winsup/cygwin is missing so newlib can't be built."
     fi
-
-    # Can't build gdb for Cygwin if not native.
-    case "${host}" in
-      *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
-      *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
-         ;;
-    esac
     ;;    
   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
@@ -646,6 +651,9 @@ case "${target}" in
   i[[3456789]]86-*-beos*)
     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
     ;;
+  i[[3456789]]86-*-rdos*)
+    noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
+    ;;
   m32r-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
@@ -665,7 +673,7 @@ case "${target}" in
     ;;
   mmix-*-*)
     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
-    unsupported_languages="$unsupported_languages f95 java"
+    unsupported_languages="$unsupported_languages fortran java"
     ;;
   mn10200-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
@@ -673,12 +681,12 @@ case "${target}" in
   mn10300-*-*)
     noconfigdirs="$noconfigdirs ${libgcj}"
     ;;
-  ms1-*-*)
+  mt-*-*)
     noconfigdirs="$noconfigdirs sim"
     ;;
   powerpc-*-aix*)
     # copied from rs6000-*-* entry
-    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
+    noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
     ;;
   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
     target_configdirs="$target_configdirs target-winsup"
@@ -702,7 +710,7 @@ case "${target}" in
     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
     ;;
   rs6000-*-aix*)
-    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
+    noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
     ;;
   rs6000-*-*)
     noconfigdirs="$noconfigdirs gprof ${libgcj}"
@@ -720,17 +728,11 @@ case "${target}" in
     # <oldham@codesourcery.com>
     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
     ;;
-  mips*-dec-bsd*)
-    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
-    ;;
   mips*-*-bsd*)
     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
     ;;
-  mipstx39-*-*)
-    noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
-    ;;
   mips64*-*-linux*)
-    noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
+    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
     ;;
   mips*-*-linux*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
@@ -772,6 +774,9 @@ case "${target}" in
     ;;
   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
     ;;
+  spu-*-*)
+    skipdirs="target-libiberty target-libssp"
+    ;;
   v810-*-*)
     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
     ;;
@@ -957,6 +962,12 @@ case "${host}" in
   powerpc-*-darwin*)
     host_makefile_frag="config/mh-ppc-darwin"
     ;;
+  powerpc-*-aix*)
+    host_makefile_frag="config/mh-ppc-aix"
+    ;;
+  rs6000-*-aix*)
+    host_makefile_frag="config/mh-ppc-aix"
+    ;;
   *-*-lynxos*)
     # /bin/cc is less than useful for our purposes.  Always use GCC
     tentative_cc="/bin/gcc"
@@ -1000,8 +1011,6 @@ if test "${build}" != "${host}" ; then
   CXX=${CXX-${host_alias}-c++}
   CXXFLAGS=${CXXFLAGS-"-g -O2"}
   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
-  BUILD_PREFIX=${build_alias}-
-  BUILD_PREFIX_1=${build_alias}-
 
 else
   # Set reasonable default values for some tools even if not Canadian.
@@ -1013,9 +1022,6 @@ else
   # This is all going to change when we autoconfiscate...
 
   CC_FOR_BUILD="\$(CC)"
-  BUILD_PREFIX=
-  BUILD_PREFIX_1=loser-
-
   AC_PROG_CC
 
   # We must set the default linker to the linker used by gcc for the correct
@@ -1046,70 +1052,89 @@ ACX_PROG_GNAT
 ACX_PROG_CMP_IGNORE_INITIAL
 
 # Check for GMP and MPFR
-gmplibs=
+gmplibs="-lmpfr"
 gmpinc=
 have_gmp=yes
 # Specify a location for mpfr
 # check for this first so it ends up on the link line before gmp.
-AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
+AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
+  AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
+Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
 
-if test "x$with_mpfr_dir" != x; then
-  gmpinc="-I$with_mpfr_dir"
-  gmplibs="$with_mpfr_dir/libmpfr.a"
-else
-  gmplibs="-lmpfr"
-fi
-
-AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
+AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
+                          Equivalent to --with-mpfr-include=PATH/include
+                          plus --with-mpfr-lib=PATH/lib])
+AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
+                          Specify directory for installed MPFR include files])
+AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
 
 if test "x$with_mpfr" != x; then
   gmplibs="-L$with_mpfr/lib $gmplibs"
   gmpinc="-I$with_mpfr/include"
 fi
+if test "x$with_mpfr_include" != x; then
+  gmpinc="-I$with_mpfr_include"
+fi
+if test "x$with_mpfr_lib" != x; then
+  gmplibs="-L$with_mpfr_lib $gmplibs"
+fi
 
 # Specify a location for gmp
-AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
-
-if test "x$with_gmp_dir" != x; then
-  gmpinc="$gmpinc -I$with_gmp_dir"
-  if test -f "$with_gmp_dir/.libs/libgmp.a"; then
-    gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
-  elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
-    gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
-  fi
-  # One of the later tests will catch the error if neither library is present.
-else
-  gmplibs="$gmplibs -lgmp"
-fi
+AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
+  AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
+Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
+
+gmplibs="$gmplibs -lgmp"
+
+AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
+                          Equivalent to --with-gmp-include=PATH/include
+                          plus --with-gmp-lib=PATH/lib])
+AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
+AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
 
-AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
 
 if test "x$with_gmp" != x; then
   gmplibs="-L$with_gmp/lib $gmplibs"
   gmpinc="-I$with_gmp/include $gmpinc"
 fi
+if test "x$with_gmp_include" != x; then
+  gmpinc="-I$with_gmp_include $gmpinc"
+fi
+if test "x$with_gmp_lib" != x; then
+  gmplibs="-L$with_gmp_lib $gmplibs"
+fi
 
 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS $gmpinc"
 # Check GMP actually works
 AC_MSG_CHECKING([for correct version of gmp.h])
 AC_TRY_COMPILE([#include "gmp.h"],[
-#if __GNU_MP_VERSION < 3
+#if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
 choke me
 #endif
-], [AC_MSG_RESULT([yes])],
-  [AC_MSG_RESULT([no]); have_gmp=no])
+], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
 
 if test x"$have_gmp" = xyes; then
-  AC_MSG_CHECKING([for MPFR])
-
   saved_LIBS="$LIBS"
   LIBS="$LIBS $gmplibs"
+  AC_MSG_CHECKING([for correct version of mpfr.h])
   AC_TRY_LINK([#include <gmp.h>
-#include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
-    [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
+#include <mpfr.h>],[
+#if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
+  choke me
+#endif
+  mpfr_t n; mpfr_init(n);
+], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
   LIBS="$saved_LIBS"
-  CFLAGS="$saved_CFLAGS"
+fi
+CFLAGS="$saved_CFLAGS"
+
+if test -d ${srcdir}/gcc && test x$have_gmp != xyes; then
+  AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
+Try the --with-gmp and/or --with-mpfr options to specify their locations.
+Copies of these libraries' source code can be found at their respective
+hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
+See also http://gcc.gnu.org/install/prerequisites.html for additional info.])
 fi
 
 # Flags needed for both GMP and/or MPFR
@@ -1143,6 +1168,15 @@ if test -d ${srcdir}/gcc; then
   fi
   enable_languages=`echo "${enable_languages}" | sed -e 's/[[ 	,]][[ 	,]]*/,/g' -e 's/,$//'`
 
+  # 'f95' is the old name for the 'fortran' language. We issue a warning
+  # and make the substitution.
+  case ,${enable_languages}, in
+    *,f95,*)
+      echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
+      enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
+      ;;
+  esac
+
   # First scan to see if an enabled language requires some other language.
   # We assume that a given config-lang.in will list all the language
   # front ends it requires, even if some are required indirectly.
@@ -1187,9 +1221,9 @@ if test -d ${srcdir}/gcc; then
         language=
         target_libs=
         lang_dirs=
+        subdir_requires=
         boot_language=
         build_by_default=
-        need_gmp=
         . ${lang_frag}
         potential_languages="${potential_languages},${language}"
         # This is quite sensitive to the ordering of the case statement arms.
@@ -1220,17 +1254,20 @@ if test -d ${srcdir}/gcc; then
             ;;
         esac
 
-        # Disable languages that need GMP if it isn't available.
-        case ,${enable_languages},:${have_gmp}:${need_gmp} in
-          *,${language},*:no:yes)
-            # Specifically requested language; tell them.
-            AC_MSG_ERROR([GMP with MPFR support is required to build $language])
-            ;;
-          *:no:yes)
-            # Silently disable.
-            add_this_lang=no
-            ;;
-        esac
+        # Disable languages that need other directories if these aren't available.
+	for i in $subdir_requires; do
+	  test -f "$srcdir/gcc/$i/config-lang.in" && continue
+	  case ,${enable_languages}, in
+            *,${language},*)
+              # Specifically requested language; tell them.
+              AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
+              ;;
+            *)
+              # Silently disable.
+              add_this_lang=no
+              ;;
+          esac
+	done
 
 	# Disable a language that is unsupported by the target.
 	case " $unsupported_languages " in
@@ -1273,6 +1310,37 @@ Recognised languages are: ${potential_languages}])
   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
 fi
 
+# Handle --disable-<component> generically.
+for dir in $configdirs $build_configdirs $target_configdirs ; do
+  dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
+  if eval test x\${enable_${dirname}} "=" xno ; then
+    noconfigdirs="$noconfigdirs $dir"
+  fi
+done
+
+# Check for Boehm's garbage collector
+AC_ARG_ENABLE(objc-gc,
+[  --enable-objc-gc       enable the use of Boehm's garbage collector with
+                          the GNU Objective-C runtime.],
+[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
+  *,objc,*:*:yes:*target-boehm-gc*)
+    AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
+    ;;
+esac])
+
+# Make sure we only build Boehm's garbage collector if required.
+case ,${enable_languages},:${enable_objc_gc} in
+  *,objc,*:yes)
+    # Keep target-boehm-gc if requested for Objective-C.
+    ;;
+  *)
+    # Otherwise remove target-boehm-gc depending on target-libjava.
+    if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
+      noconfigdirs="$noconfigdirs target-boehm-gc"
+    fi
+    ;;
+esac
+
 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
 # $build_configdirs and $target_configdirs.
 # If we have the source for $noconfigdirs entries, add them to $notsupp.
@@ -1446,6 +1514,39 @@ if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
   fi
 fi
 
+# Set with_gnu_as and with_gnu_ld as appropriate.
+#
+# This is done by determining whether or not the appropriate directory
+# is available, and by checking whether or not specific configurations
+# have requested that this magic not happen.
+# 
+# The command line options always override the explicit settings in 
+# configure.in, and the settings in configure.in override this magic.
+#
+# If the default for a toolchain is to use GNU as and ld, and you don't 
+# want to do that, then you should use the --without-gnu-as and
+# --without-gnu-ld options for the configure script.
+
+if test x${use_gnu_as} = x &&
+   echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
+  with_gnu_as=yes
+  extra_host_args="$extra_host_args --with-gnu-as"
+fi
+
+if test x${use_gnu_ld} = x &&
+   echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
+  with_gnu_ld=yes
+  extra_host_args="$extra_host_args --with-gnu-ld"
+fi
+
+# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
+# can detect this case.
+
+if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
+  with_newlib=yes
+  extra_host_args="$extra_host_args --with-newlib"
+fi
+
 # Handle ${copy_dirs}
 set fnord ${copy_dirs}
 shift
@@ -1477,6 +1578,55 @@ while test $# != 0 ; do
   shift; shift
 done
 
+# Determine a target-dependent exec_prefix that the installed
+# gcc will search in.  Keep this list sorted by triplet, with
+# the *-*-osname triplets last.
+md_exec_prefix=
+case "${target}" in
+  alpha*-*-*vms*)
+    md_exec_prefix=/gnu/lib/gcc-lib
+    ;;
+  i[34567]86-pc-msdosdjgpp*)
+    md_exec_prefix=/dev/env/DJDIR/bin
+    ;;
+  i[34567]86-*-sco3.2v5*)
+    if test $with_gnu_as = yes; then
+      md_exec_prefix=/usr/gnu/bin
+    else
+      md_exec_prefix=/usr/ccs/bin/elf
+    fi
+    ;;
+
+  mn10300-*-* | \
+  powerpc-*-chorusos* | \
+  powerpc*-*-eabi* | \
+  powerpc*-*-sysv* | \
+  powerpc*-*-kaos* | \
+  s390x-ibm-tpf*)
+    md_exec_prefix=/usr/ccs/bin
+    ;;
+  sparc64-*-elf*)
+    ;;
+  v850*-*-*)
+    md_exec_prefix=/usr/ccs/bin
+    ;;
+  xtensa-*-elf*)
+    ;;
+
+  *-*-beos* | \
+  *-*-elf* | \
+  *-*-hpux* | \
+  *-*-netware* | \
+  *-*-nto-qnx* | \
+  *-*-rtems* | \
+  *-*-solaris2* | \
+  *-*-sysv[45]* | \
+  *-*-vxworks* | \
+  *-wrs-windiss)
+    md_exec_prefix=/usr/ccs/bin
+    ;;
+esac
+
 extra_arflags_for_target=
 extra_nmflags_for_target=
 extra_ranlibflags_for_target=
@@ -1534,39 +1684,6 @@ case "${enable_target_optspace}:${target}" in
     ;;
 esac
 
-# Set with_gnu_as and with_gnu_ld as appropriate.
-#
-# This is done by determining whether or not the appropriate directory
-# is available, and by checking whether or not specific configurations
-# have requested that this magic not happen.
-# 
-# The command line options always override the explicit settings in 
-# configure.in, and the settings in configure.in override this magic.
-#
-# If the default for a toolchain is to use GNU as and ld, and you don't 
-# want to do that, then you should use the --without-gnu-as and
-# --without-gnu-ld options for the configure script.
-
-if test x${use_gnu_as} = x &&
-   echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
-  with_gnu_as=yes
-  extra_host_args="$extra_host_args --with-gnu-as"
-fi
-
-if test x${use_gnu_ld} = x &&
-   echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
-  with_gnu_ld=yes
-  extra_host_args="$extra_host_args --with-gnu-ld"
-fi
-
-# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
-# can detect this case.
-
-if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
-  with_newlib=yes
-  extra_host_args="$extra_host_args --with-newlib"
-fi
-
 # Default to using --with-stabs for certain targets.
 if test x${with_stabs} = x ; then
   case "${target}" in
@@ -1592,17 +1709,6 @@ esac
 tooldir='${exec_prefix}'/${target_alias}
 build_tooldir=${tooldir}
 
-# Generate default definitions for YACC, M4, LEX and other programs that run
-# on the build machine.  These are used if the Makefile can't locate these
-# programs in objdir.
-MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
-AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
-AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
-AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
-AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
-AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
-AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
-
 # Create a .gdbinit file which runs the one in srcdir
 # and tells GDB to look there for source files.
 
@@ -1705,6 +1811,8 @@ case "$enable_gdbtk" in
     fi
     ;;
 esac
+CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
+INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
 
 # Strip out unwanted targets.
 
@@ -1720,7 +1828,7 @@ esac
 # not to nest @if/@endif pairs, because configure will not warn you at all.
 
 AC_ARG_ENABLE([bootstrap],
-[  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
+[  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
 enable_bootstrap=default)
 
 # Issue errors and warnings for invalid/strange bootstrap combinations.
@@ -1732,27 +1840,26 @@ esac
 case "$have_compiler:$host:$target:$enable_bootstrap" in
   *:*:*:no) ;;
 
-  # Default behavior.  (We'll) enable bootstrap if we have a compiler
+  # Default behavior.  Enable bootstrap if we have a compiler
   # and we are in a native configuration.
   yes:$build:$build:default)
-    # This will become 'yes'
-    enable_bootstrap=no ;;
+    enable_bootstrap=yes ;;
 
   *:*:*:default)
     enable_bootstrap=no ;;
 
   # We have a compiler and we are in a native configuration, bootstrap is ok
-  yes:$build:$build:yes | yes:$build:$build:lean)
+  yes:$build:$build:yes)
     ;;
 
   # Other configurations, but we have a compiler.  Assume the user knows
   # what he's doing.
-  yes:*:*:yes | yes:*:*:lean)
+  yes:*:*:yes)
     AC_MSG_WARN([trying to bootstrap a cross compiler])
     ;;
 
   # No compiler: if they passed --enable-bootstrap explicitly, fail
-  no:*:*:yes | no:*:*:lean)
+  no:*:*:yes)
     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
 
   # Fail if wrong command line
@@ -1764,19 +1871,10 @@ esac
 # Adjust the toplevel makefile according to whether bootstrap was selected.
 case "$enable_bootstrap" in
   yes)
-    bootstrap_lean='#'
-    default_target=bootstrap
-    bootstrap_suffix=bootstrap ;;
-  lean)
-    bootstrap_lean=''
-    default_target=bootstrap
     bootstrap_suffix=bootstrap ;;
   no)
-    default_target=all
     bootstrap_suffix=no-bootstrap ;;
 esac
-AC_SUBST(bootstrap_lean)
-AC_SUBST(default_target)
 
 for module in ${build_configdirs} ; do
   if test -z "${no_recursion}" \
@@ -1791,10 +1889,13 @@ for module in ${build_configdirs} ; do
 /^@endif build-$module-$bootstrap_suffix\$/d"
 done
 for module in ${configdirs} ; do
-  if test -z "${no_recursion}" \
-     && test -f ${module}/Makefile; then
-    echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
-    rm -f ${module}/Makefile
+  if test -z "${no_recursion}"; then
+    for file in stage*-${module}/Makefile ${module}/Makefile; do
+      if test -f ${file}; then
+	echo 1>&2 "*** removing ${file} to force reconfigure"
+	rm -f ${file}
+      fi
+    done
   fi
   extrasub="$extrasub
 /^@if $module\$/d
@@ -2023,6 +2124,11 @@ case " $target_configdirs " in
   esac
   ;;
 esac
+case "$target" in
+*-mingw*)
+  # Can't be handled as Cygwin above since Mingw does not use newlib.
+  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
+esac
 
 # Allow the user to override the flags for
 # our build compiler if desired.
@@ -2043,6 +2149,20 @@ if test "x${use_gnu_ld}" = x &&
   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
 fi
 
+# Search for other target-specific linker scripts and such.
+case "${target}" in
+  m32c-*-* )
+    if test -d ${srcdir}/libgloss/m32c; then
+      # This is for crt0.o
+      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
+      # This is for r8c.ld
+      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
+      # This is for libnosys.a
+      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
+    fi
+    ;;
+esac
+
 # Makefile fragments.
 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
 do
@@ -2058,11 +2178,11 @@ AC_SUBST_FILE(ospace_frag)
 
 # Miscellanea: directories, flags, etc.
 AC_SUBST(RPATH_ENVVAR)
-AC_SUBST(BUILD_PREFIX)
-AC_SUBST(BUILD_PREFIX_1)
 AC_SUBST(tooldir)
 AC_SUBST(build_tooldir)
+AC_SUBST(CONFIGURE_GDB_TK)
 AC_SUBST(GDB_TK)
+AC_SUBST(INSTALL_GDB_TK)
 
 # Build module lists & subconfigure args.
 AC_SUBST(build_configargs)
@@ -2074,19 +2194,87 @@ AC_SUBST(configdirs)
 
 # Target module lists & subconfigure args.
 AC_SUBST(target_configargs)
-AC_SUBST(target_configdirs)
+
 
 # Build tools.
 AC_SUBST(CC_FOR_BUILD)
 AC_SUBST(config_shell)
 
+# Generate default definitions for YACC, M4, LEX and other programs that run
+# on the build machine.  These are used if the Makefile can't locate these
+# programs in objdir.
+MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
+
+AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
+case " $build_configdirs " in
+  *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
+  *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
+esac
+
+AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
+case " $build_configdirs " in
+  *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
+esac
+
+AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
+case " $build_configdirs " in
+  *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
+esac
+
+AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
+case " $build_configdirs " in
+  *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
+  *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
+esac
+
+AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
+case " $build_configdirs " in
+  *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
+esac
+
+AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
+case " $build_configdirs " in
+  *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
+  *)
+changequote(,)
+    # For an installed makeinfo, we require it to be from texinfo 4.4 or
+    # higher, else we use the "missing" dummy.
+    if ${MAKEINFO} --version \
+       | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
+      :
+    else
+      MAKEINFO="$MISSING makeinfo"
+    fi
+    ;;
+changequote([,])
+esac
+
+# FIXME: expect and dejagnu may become build tools?
+
+AC_CHECK_PROGS(EXPECT, expect, expect)
+case " $configdirs " in
+  *" expect "*)
+    test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
+    ;;
+esac
+
+AC_CHECK_PROGS(RUNTEST, runtest, runtest)
+case " $configdirs " in
+  *" dejagnu "*)
+    test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
+    ;;
+esac
+
+
 # Host tools.
 NCN_STRICT_CHECK_TOOLS(AR, ar)
 NCN_STRICT_CHECK_TOOLS(AS, as)
 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
 NCN_STRICT_CHECK_TOOLS(LD, ld)
+NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
 NCN_STRICT_CHECK_TOOLS(NM, nm)
 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
+NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
@@ -2096,86 +2284,62 @@ AC_SUBST(CFLAGS)
 AC_SUBST(CFLAGS_FOR_BUILD)
 AC_SUBST(CXXFLAGS)
 
-# Target tools.  Do the tests using the names they may have passed in
-# the environment, then move it to CONFIGURED_*_FOR_TARGET.
-NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
-NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
+# Target tools.
+AC_ARG_WITH([build-time-tools], 
+  [  --with-build-time-tools=path
+                          use given path to find target tools during the build],
+  [case x"$withval" in
+     x/*) ;;
+     *)
+       with_build_time_tools=
+       AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
+       ;;
+   esac],
+  [with_build_time_tools=])
+
 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
-NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
-NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
-NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
-NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
-NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
-
-CONFIGURED_AR_FOR_TARGET="$AR_FOR_TARGET"
-CONFIGURED_AS_FOR_TARGET="$AS_FOR_TARGET"
-CONFIGURED_CC_FOR_TARGET="$CC_FOR_TARGET"
-CONFIGURED_CXX_FOR_TARGET="$CXX_FOR_TARGET"
-CONFIGURED_DLLTOOL_FOR_TARGET="$DLLTOOL_FOR_TARGET"
-CONFIGURED_GCC_FOR_TARGET="$GCC_FOR_TARGET"
-CONFIGURED_GCJ_FOR_TARGET="$GCJ_FOR_TARGET"
-CONFIGURED_GFORTRAN_FOR_TARGET="$GFORTRAN_FOR_TARGET"
-CONFIGURED_LD_FOR_TARGET="$LD_FOR_TARGET"
-CONFIGURED_NM_FOR_TARGET="$NM_FOR_TARGET"
-CONFIGURED_RANLIB_FOR_TARGET="$RANLIB_FOR_TARGET"
-CONFIGURED_WINDRES_FOR_TARGET="$WINDRES_FOR_TARGET"
-
-AC_SUBST(CONFIGURED_AR_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_AS_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_CC_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_CXX_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_DLLTOOL_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_GCC_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_GCJ_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_GFORTRAN_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_LD_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_NM_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_RANLIB_FOR_TARGET)dnl
-AC_SUBST(CONFIGURED_WINDRES_FOR_TARGET)dnl
-AC_SUBST(FLAGS_FOR_TARGET)
 
-# Fix up target tools.
-if test "x${build}" = "x${host}" ; then
-  # In this case, the newly built tools can and should be used,
-  # so we override the results of the autoconf tests.
-  # This should really only happen when the tools are actually being built,
-  # but that's a further refinement.  The new build scheme, where
-  # tools are built into a structure paralleling where they're installed,
-  # should also eliminate all of this cleanly.
-  AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
-  AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
-  CC_FOR_TARGET="\$(USUAL_CC_FOR_TARGET)"
-  CXX_FOR_TARGET="\$(USUAL_CXX_FOR_TARGET)"
-  RAW_CXX_FOR_TARGET="\$(USUAL_RAW_CXX_FOR_TARGET)"
-  DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
-  GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
-  GCJ_FOR_TARGET="\$(USUAL_GCJ_FOR_TARGET)"
-  GFORTRAN_FOR_TARGET="\$(USUAL_GFORTRAN_FOR_TARGET)"
-  LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
-  NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
-  RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
-  WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
-else
-  # Just use the ones we found.
-  AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
-  AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
-  CC_FOR_TARGET="\$(CONFIGURED_CC_FOR_TARGET)"
-  CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
-  RAW_CXX_FOR_TARGET="\$(CONFIGURED_CXX_FOR_TARGET)"
-  DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
-  GCC_FOR_TARGET="\$(CONFIGURED_GCC_FOR_TARGET)"
-  GCJ_FOR_TARGET="\$(CONFIGURED_GCJ_FOR_TARGET)"
-  GFORTRAN_FOR_TARGET="\$(CONFIGURED_GFORTRAN_FOR_TARGET)"
-  LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
-  NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
-  RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
-  WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"  
-fi
+ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
+ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
+ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
+ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
+ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
+ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
+ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
+ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
+ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
+ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
+
+RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
+
+GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
+GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
+GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
+GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
+		[gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
+		c++)
+GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
+		[gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
+		c++)
+GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
+GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
+GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
+		[gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
+GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
+		[gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
+GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
+GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
+GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
+GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
+GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
+GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
+GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
 
+AC_SUBST(FLAGS_FOR_TARGET)
 AC_SUBST(RAW_CXX_FOR_TARGET)
 
 # Certain tools may need extra flags.
@@ -2183,6 +2347,25 @@ AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
 
+# When building target libraries, except in a Canadian cross, we use
+# the same toolchain as the compiler we just built.
+COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
+COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
+COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
+if test $host = $build; then
+  case " $configdirs " in
+    *" gcc "*)
+      COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
+      COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
+      COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
+      ;;
+  esac
+fi
+
+AC_SUBST(COMPILER_AS_FOR_TARGET)
+AC_SUBST(COMPILER_LD_FOR_TARGET)
+AC_SUBST(COMPILER_NM_FOR_TARGET)
+
 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 AC_ARG_ENABLE(maintainer-mode,
 [  --enable-maintainer-mode enable make rules and dependencies not useful
@@ -2222,37 +2405,22 @@ case $build in
     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
     ;;
 esac
-AC_SUBST(stage1_cflags)
 
-# It makes debugging easier if we create as symlinks the stage directories
-# gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
-# possible, however, we can resort to mv.
-AC_CACHE_CHECK([if symbolic links between directories work],
-[gcc_cv_prog_ln_s_dir],
-[if test "${LN_S}" = "ln -s" \
-   && mkdir confdir.s1 \
-   && ln -s confdir.s1 confdir.s2 \
-   && echo timestamp1 > confdir.s1/conftest.1 \
-   && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
-   && echo timestamp2 > confdir.s2/conftest.2 \
-   && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
-   && rm -f confdir.s2; then
-  gcc_cv_prog_ln_s_dir=yes
-else
-  gcc_cv_prog_ln_s_dir=no
+# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
+if test "$GCC" = yes; then
+  saved_CFLAGS="$CFLAGS"
+
+  # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
+  CFLAGS="$CFLAGS -fkeep-inline-functions"
+  AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
+  AC_TRY_COMPILE(,,
+    [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
+    [AC_MSG_RESULT([no])])
+
+  CFLAGS="$saved_CFLAGS"
 fi
-rm -rf confdir.s1 confdir.s2])
 
-case ${gcc_cv_prog_ln_s_dir} in
-  yes)
-    CREATE_LINK_TO_DIR='ln -s $$1 $$2'
-    UNDO_LINK_TO_DIR='rm -f $$1' ;;
-  *)
-    CREATE_LINK_TO_DIR='mv $$1 $$2'
-    UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
-esac
-AC_SUBST(CREATE_LINK_TO_DIR)
-AC_SUBST(UNDO_LINK_TO_DIR)
+AC_SUBST(stage1_cflags)
 
 # Enable -Werror in bootstrap stage2 and later.
 # Change the default to "no" on release branches.
@@ -2265,4 +2433,24 @@ case ${enable_werror} in
 esac
 AC_SUBST(stage2_werror_flag)
 
+# Flags needed to enable html installing and building
+AC_ARG_WITH(datarootdir,
+[  --with-datarootdir	Use datarootdir as the data root directory.],
+[datarootdir="\${prefix}/${withval}"],
+[datarootdir="\${prefix}/share"])
+
+AC_ARG_WITH(docdir,
+[  --with-docdir	Install documentation in this directory.],
+[docdir="\${prefix}/${withval}"],
+[docdir="\${datarootdir}/doc"])
+
+AC_ARG_WITH(htmldir,
+[  --with-htmldir	Install html in this directory.],
+[htmldir="\${prefix}/${withval}"],
+[htmldir="\${docdir}"])
+
+AC_SUBST(datarootdir)
+AC_SUBST(docdir)
+AC_SUBST(htmldir)
+
 AC_OUTPUT(Makefile)