# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+# 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
# Free Software Foundation, Inc.
#
# This file is free software; you can redistribute it and/or modify it
### or a host dependent tool. Then put it into the appropriate list
### (library or tools, host or target), doing a dependency sort.
-# Subdirs will be configured in the order listed in build_configdirs,
+# Subdirs will be configured in the order listed in build_configdirs,
# configdirs, or target_configdirs; see the serialization section below.
-# Dependency sorting is only needed when *configuration* must be done in
-# a particular order. In all cases a dependency should be specified in
+# Dependency sorting is only needed when *configuration* must be done in
+# a particular order. In all cases a dependency should be specified in
# the Makefile, whether or not it's implicitly specified here.
# Double entries in build_configdirs, configdirs, or target_configdirs may
# these libraries are built for the target environment, and are built after
# the host libraries and the host tools (which may be a cross compiler)
-#
+# Note that libiberty is not a target library.
target_libraries="target-libgcc \
- target-libiberty \
target-libgloss \
target-newlib \
target-libgomp \
+ target-libitm \
target-libstdc++-v3 \
target-libmudflap \
target-libssp \
is_cross_compiler=no
else
is_cross_compiler=yes
-fi
+fi
# Find the build and target subdir names.
GCC_TOPLEV_SUBDIRS
noconfigdirs="$noconfigdirs zlib"
fi
-# some tools are so dependent upon X11 that if we're not building with X,
+# some tools are so dependent upon X11 that if we're not building with X,
# it's not even worth trying to configure, much less build, that tool.
case ${with_x} in
no)
skipdirs="${skipdirs} tk itcl libgui"
# We won't be able to build gdbtk without X.
- enable_gdbtk=no
+ enable_gdbtk=no
;;
*) echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
esac
*-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
| *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
| *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
- | *-*-solaris2* | *-*-nto*)
+ | *-*-solaris2* | *-*-nto* | *-*-nacl*)
case "${target}" in
*-*-linux*aout* | *-*-linux*oldld*)
;;
# Only spaces may be used in this macro; not newlines or tabs.
unsupported_languages=
-# Remove more programs from consideration, based on the host or
+# Remove more programs from consideration, based on the host or
# target this usually means that a port of the program doesn't
# exist yet.
;;
esac
+AC_ARG_ENABLE(static-libjava,
+[AS_HELP_STRING([[--enable-static-libjava[=ARG]]],
+ [build static libjava @<:@default=no@:>@])],
+ENABLE_STATIC_LIBJAVA=$enableval,
+ENABLE_STATIC_LIBJAVA=no)
+enable_static_libjava=
+if test "${ENABLE_STATIC_LIBJAVA}" = "yes" ; then
+ enable_static_libjava=yes
+fi
+
+if test x$enable_static_libjava != xyes ; then
+ EXTRA_CONFIGARGS_LIBJAVA=--disable-static
+fi
+AC_SUBST(EXTRA_CONFIGARGS_LIBJAVA)
# Disable libmudflap on some systems.
if test x$enable_libmudflap = x ; then
;;
*-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
;;
- *-*-solaris2* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
+ *-*-solaris2* | *-*-hpux11*)
;;
*-*-darwin* | *-*-aix*)
;;
esac
fi
+# Disable libitm on unsupported systems.
+if test -d ${srcdir}/libitm; then
+ if test x$enable_libitm = x; then
+ AC_MSG_CHECKING([for libitm support])
+ if (srcdir=${srcdir}/libitm; \
+ . ${srcdir}/configure.tgt; \
+ test -n "$UNSUPPORTED")
+ then
+ AC_MSG_RESULT([no])
+ noconfigdirs="$noconfigdirs target-libitm"
+ else
+ AC_MSG_RESULT([yes])
+ fi
+ fi
+fi
+
# Disable libssp for some systems.
case "${target}" in
avr-*-*)
powerpc-*-aix* | rs6000-*-aix*)
noconfigdirs="$noconfigdirs target-libssp"
;;
-esac
-
-# Disable target libiberty for some systems.
-case "${target}" in
- *-*-kaos*)
- # Remove unsupported stuff on all kaOS configurations.
- skipdirs="target-libiberty"
- ;;
- *-*-netbsd*)
- # Skip some stuff on all NetBSD configurations.
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- *-*-netware*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- *-*-rtems*)
- skipdirs="${skipdirs} target-libiberty"
- ;;
- *-*-tpf*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- *-*-vxworks*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- sh*-*-pe|mips*-*-pe|*arm-wince-pe)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- arm*-*-symbianelf*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- avr-*-*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- picochip-*-*)
- noconfigdirs="$noconfigdirs target-libiberty"
- ;;
- mips*-sde-elf*)
- skipdirs="$skipdirs target-libiberty"
- ;;
- ip2k-*-*)
- noconfigdirs="$noconfigdirs target-libiberty"
+ rl78-*-*)
+ # libssp uses a misaligned load to trigger a fault, but the RL78
+ # doesn't fault for those - instead, it gives a build-time error
+ # for explicit misaligned loads.
+ noconfigdirs="$noconfigdirs target-libssp"
;;
esac
;;
m68k-*-*)
;;
- mips-sgi-irix6.* | mips*-*-rtems*)
+ mips*-*-rtems*)
;;
mips*-*-linux*)
;;
rs6000-*-aix*)
noconfigdirs="$noconfigdirs ${libgcj}"
;;
- mips*-*-irix6*)
- # Linking libjava exceeds command-line length limits on at least
- # IRIX 6.2, but not on IRIX 6.5.
- # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
- noconfigdirs="$noconfigdirs ${libgcj}"
- ;;
*-*-lynxos*)
noconfigdirs="$noconfigdirs ${libgcj}"
- ;;
+ ;;
esac
# Default libgloss CPU subdirectory.
;;
*-*-lynxos*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
- ;;
+ ;;
*-*-mingw*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;
noconfigdirs="$noconfigdirs libgui itcl ld"
;;
ia64*-*-*vms*)
- # No gdb or ld support yet.
- noconfigdirs="$noconfigdirs readline libgui itcl gdb ld"
+ noconfigdirs="$noconfigdirs libgui itcl"
;;
i[[3456789]]86-w64-mingw*)
;;
i[[3456789]]86-*-sco*)
noconfigdirs="$noconfigdirs gprof target-libgloss"
;;
- i[[3456789]]86-*-solaris2*)
+ i[[3456789]]86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
i[[3456789]]86-*-sysv4*)
fi
;;
tic6x-*-*)
- noconfigdirs="$noconfigdirs gdb sim"
+ noconfigdirs="$noconfigdirs sim"
+ ;;
+ tilepro-*-* | tilegx-*-*)
+ noconfigdirs="$noconfigdirs sim"
;;
v810-*-*)
noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
hppa*-hp-hpux*)
host_makefile_frag="config/mh-pa"
;;
- hppa*-*)
+ hppa*-*)
host_makefile_frag="config/mh-pa"
;;
*-*-darwin*)
ACX_PROG_GNAT
ACX_PROG_CMP_IGNORE_INITIAL
+AC_ARG_ENABLE([bootstrap],
+[AS_HELP_STRING([--enable-bootstrap],
+ [enable bootstrapping @<:@yes if native build@:>@])],,
+enable_bootstrap=default)
+
+# Issue errors and warnings for invalid/strange bootstrap combinations.
+if test -r $srcdir/gcc/configure; then
+ have_compiler=yes
+else
+ have_compiler=no
+fi
+
+case "$have_compiler:$host:$target:$enable_bootstrap" in
+ *:*:*:no) ;;
+
+ # Default behavior. Enable bootstrap if we have a compiler
+ # and we are in a native configuration.
+ yes:$build:$build:default)
+ enable_bootstrap=yes ;;
+
+ *:*:*:default)
+ enable_bootstrap=no ;;
+
+ # We have a compiler and we are in a native configuration, bootstrap is ok
+ yes:$build:$build:yes)
+ ;;
+
+ # Other configurations, but we have a compiler. Assume the user knows
+ # what he's doing.
+ yes:*:*:yes)
+ AC_MSG_WARN([trying to bootstrap a cross compiler])
+ ;;
+
+ # No compiler: if they passed --enable-bootstrap explicitly, fail
+ no:*:*:yes)
+ AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
+
+ # Fail if wrong command line
+ *)
+ AC_MSG_ERROR([invalid option for --enable-bootstrap])
+ ;;
+esac
+
# See if we are building gcc with C++.
AC_ARG_ENABLE(build-with-cxx,
[AS_HELP_STRING([--enable-build-with-cxx],
ENABLE_BUILD_WITH_CXX=$enableval,
ENABLE_BUILD_WITH_CXX=no)
+# Build stage1 with C and build stages 2 and 3 with C++.
+AC_ARG_ENABLE(build-poststage1-with-cxx,
+[AS_HELP_STRING([--enable-build-poststage1-with-cxx],
+ [build stages 2 and 3 with C++, not C])],
+ENABLE_BUILD_POSTSTAGE1_WITH_CXX=$enableval,
+ENABLE_BUILD_POSTSTAGE1_WITH_CXX=yes)
+
# Used for setting $lt_cv_objdir
_LT_CHECK_OBJDIR
gmplibs="-L$with_mpfr_lib $gmplibs"
fi
if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
- gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
- gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
- extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
+ # MPFR v3.1.0 moved the sources into a src sub-directory.
+ if test -d ${srcdir}/mpfr/src; then
+ gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir $gmplibs"
+ gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr/src -I$$s/mpfr/src '"$gmpinc"
+ extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr/src --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/src/'"$lt_cv_objdir"
+ else
+ gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
+ gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
+ extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
+ fi
# Do not test the mpfr version. Assume that it is sufficient, since
# it is in the source tree, and the library has not been built yet
# but it would be included on the link line in the version check below
;;
esac
+ # If bootstrapping, then using --enable-build-with-cxx or
+ # --enable-build-poststage1-with-cxx requires enabling C++.
+ case ",$enable_languages,:,$ENABLE_BUILD_WITH_CXX,$ENABLE_BUILD_POSTSTAGE1_WITH_CXX,:$enable_bootstrap" in
+ *,c++,*:*:*) ;;
+ *:*,yes,*:yes)
+ if test -f ${srcdir}/gcc/cp/config-lang.in; then
+ enable_languages="${enable_languages},c++"
+ else
+ AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx or --enable-build-poststage1-with-cxx requires c++ sources])
+ fi
+ ;;
+ 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.
# an apparent bug in bash 1.12 on linux.
${srcdir}/gcc/[[*]]/config-lang.in) ;;
*)
- # From the config-lang.in, get $language, $target_libs,
+ # From the config-lang.in, get $language, $target_libs,
# $lang_dirs, $boot_language, and $build_by_default
language=
target_libs=
exit 1
fi
- if test "$language" = "c++" \
- && test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
- boot_language=yes
+ if test "$language" = "c++"; then
+ if test "$ENABLE_BUILD_WITH_CXX" = "yes" \
+ || test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
+ boot_language=yes
+ fi
fi
case ,${enable_languages}, in
fi
done
-# Sometimes the tools are distributed with libiberty but with no other
-# libraries. In that case, we don't want to build target-libiberty.
-# Don't let libgcc imply libiberty either.
-if test -n "${target_configdirs}" ; then
- libgcc=
- others=
- for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
- if test "$i" = "libgcc"; then
- libgcc=target-libgcc
- elif test "$i" != "libiberty" ; then
- if test -r $srcdir/$i/configure ; then
- others=yes;
- break;
- fi
- fi
- done
- if test -z "${others}" ; then
- target_configdirs=$libgcc
- fi
-fi
-
# Quietly strip out all directories which aren't configurable in this tree.
# This relies on all configurable subdirectories being autoconfiscated, which
# is now the case.
build_configdirs_all="$build_configdirs"
build_configdirs=
for i in ${build_configdirs_all} ; do
- j=`echo $i | sed -e s/build-//g`
+ j=`echo $i | sed -e s/build-//g`
if test -f ${srcdir}/$j/configure ; then
build_configdirs="${build_configdirs} $i"
fi
target_configdirs_all="$target_configdirs"
target_configdirs=
for i in ${target_configdirs_all} ; do
- j=`echo $i | sed -e s/target-//g`
+ j=`echo $i | sed -e s/target-//g`
if test -f ${srcdir}/$j/configure ; then
target_configdirs="${target_configdirs} $i"
fi
copy_dirs=
-AC_ARG_WITH([build-sysroot],
+AC_ARG_WITH([build-sysroot],
[AS_HELP_STRING([--with-build-sysroot=SYSROOT],
[use sysroot as the system root during the build])],
[if test x"$withval" != x ; then
CFLAGS_FOR_TARGET=$CFLAGS
case " $CFLAGS " in
*" -O2 "*) ;;
- *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
+ *) CFLAGS_FOR_TARGET="-O2 $CFLAGS_FOR_TARGET" ;;
esac
case " $CFLAGS " in
*" -g "* | *" -g3 "*) ;;
- *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
+ *) CFLAGS_FOR_TARGET="-g $CFLAGS_FOR_TARGET" ;;
esac
fi
AC_SUBST(CFLAGS_FOR_TARGET)
CXXFLAGS_FOR_TARGET=$CXXFLAGS
case " $CXXFLAGS " in
*" -O2 "*) ;;
- *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
+ *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS_FOR_TARGET" ;;
esac
case " $CXXFLAGS " in
*" -g "* | *" -g3 "*) ;;
- *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
+ *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS_FOR_TARGET" ;;
esac
fi
AC_SUBST(CXXFLAGS_FOR_TARGET)
+AC_SUBST(LDFLAGS_FOR_TARGET)
+
# Handle --with-headers=XXX. If the value is not "yes", the contents of
# the named directory are copied to $(tooldir)/sys-include.
if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
# This is done by determining whether or not the appropriate directory
# is available, and by checking whether or not specific configurations
# have requested that this magic not happen.
-#
-# The command line options always override the explicit settings in
+#
+# The command line options always override the explicit settings in
# configure.in, and the settings in configure.in override this magic.
#
-# If the default for a toolchain is to use GNU as and ld, and you don't
+# If the default for a toolchain is to use GNU as and ld, and you don't
# want to do that, then you should use the --without-gnu-as and
# --without-gnu-ld options for the configure script. Similarly, if
# the default is to use the included zlib and you don't want to do that,
target_makefile_frag="config/mt-gnu"
;;
*-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
- # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
+ # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
# commands to handle both 32-bit and 64-bit objects. These flags are
# harmless if we're using GNU nm or ar.
extra_arflags_for_target=" -X32_64"
;;
esac
-# Default to using --with-stabs for certain targets.
-if test x${with_stabs} = x ; then
- case "${target}" in
- mips*-*-irix[[56]]*)
- ;;
- mips*-*-* | alpha*-*-osf*)
- with_stabs=yes;
- extra_host_args="${extra_host_args} --with-stabs"
- ;;
- esac
-fi
-
# Some systems (e.g., one of the i386-aix systems the gas testers are
# using) don't handle "\$" correctly, so don't use it here.
tooldir='${exec_prefix}'/${target_noncanonical}
if test -s conftest || test -s conftest.exe ; then
we_are_ok=yes
fi
-fi
+fi
case $we_are_ok in
no)
echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
# 99 commands in a script, for HP-UX sed.
# Do not nest @if/@endif pairs, because configure will not warn you at all.
-AC_ARG_ENABLE([bootstrap],
-[AS_HELP_STRING([--enable-bootstrap],
- [enable bootstrapping @<:@yes if native build@:>@])],,
-enable_bootstrap=default)
-
-# Issue errors and warnings for invalid/strange bootstrap combinations.
-case "$configdirs" in
- *gcc*) have_compiler=yes ;;
- *) have_compiler=no ;;
-esac
-
-case "$have_compiler:$host:$target:$enable_bootstrap" in
- *:*:*:no) ;;
-
- # Default behavior. Enable bootstrap if we have a compiler
- # and we are in a native configuration.
- yes:$build:$build:default)
- 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)
- ;;
-
- # Other configurations, but we have a compiler. Assume the user knows
- # what he's doing.
- yes:*:*:yes)
- AC_MSG_WARN([trying to bootstrap a cross compiler])
- ;;
-
- # No compiler: if they passed --enable-bootstrap explicitly, fail
- no:*:*:yes)
- AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
-
- # Fail if wrong command line
- *)
- AC_MSG_ERROR([invalid option for --enable-bootstrap])
- ;;
-esac
-
-case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
- *,c++,*:yes:yes) ;;
- *:yes:yes)
- AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages])
- ;;
-esac
-
case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
yes:yes:*\ gold\ *:*,c++,*) ;;
yes:yes:*\ gold\ *:*)
# --program-suffix have been applied to it. Autoconf has already
# doubled dollar signs and backslashes in program_transform_name; we want
# the backslashes un-doubled, and then the entire thing wrapped in single
-# quotes, because this will be expanded first by make and then by the shell.
+# quotes, because this will be expanded first by make and then by the shell.
# Also, because we want to override the logic in subdir configure scripts to
# choose program_transform_name, replace any s,x,x, with s,y,y,.
sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
+NCN_STRICT_CHECK_TOOLS(READELF, readelf)
AC_SUBST(CC)
AC_SUBST(CXX)
AC_SUBST(CFLAGS)
AC_SUBST(CXXFLAGS)
# Target tools.
-AC_ARG_WITH([build-time-tools],
+AC_ARG_WITH([build-time-tools],
[AS_HELP_STRING([--with-build-time-tools=PATH],
[use given path to find target tools during the build])],
[case x"$withval" in
ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
+ACX_CHECK_INSTALLED_TARGET_TOOL(READELF_FOR_TARGET, readelf)
ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
+GCC_TARGET_TOOL(readelf, READELF_FOR_TARGET, READELF, [binutils/readelf])
GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
else
MAINTAINER_MODE_TRUE='#'
MAINTAINER_MODE_FALSE=
-fi
+fi
MAINT=$MAINTAINER_MODE_TRUE
AC_SUBST(MAINT)dnl
esac
AC_SUBST(stage2_werror_flag)
+# If using ENABLE_BUILD_POSTSTAGE1_WITH_CXX, pass
+# --enable-build-with-cxx after stage1.
+if test "$ENABLE_BUILD_POSTSTAGE1_WITH_CXX" = "yes"; then
+ POSTSTAGE1_CONFIGURE_FLAGS=--enable-build-with-cxx
+else
+ POSTSTAGE1_CONFIGURE_FLAGS=
+fi
+AC_SUBST(POSTSTAGE1_CONFIGURE_FLAGS)
+
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"