ac_subst_vars='LTLIBOBJS
LIBOBJS
compare_exclusions
+host_shared
stage2_werror_flag
stage1_checking
stage1_cflags
enable_libquadmath_support
enable_libada
enable_libssp
+enable_libstdcxx
enable_static_libjava
enable_bootstrap
with_mpc
enable_maintainer_mode
enable_stage1_checking
enable_werror
+enable_host_shared
'
ac_precious_vars='build_alias
host_alias
disable libquadmath support for Fortran
--enable-libada build libada directory
--enable-libssp build libssp directory
+ --disable-libstdcxx do not build libstdc++-v3 directory
--enable-static-libjava[=ARG]
build static libjava [default=no]
--enable-bootstrap enable bootstrapping [yes if native build]
choose additional checking for stage1 of the
compiler
--enable-werror enable -Werror in bootstrap stage2 and later
+ --enable-host-shared build host code as shared libraries
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
target-libgloss \
target-newlib \
target-libgomp \
+ target-libcilkrts \
target-libatomic \
target-libitm \
target-libstdc++-v3 \
- target-libmudflap \
+ target-libsanitizer \
+ target-libvtv \
target-libssp \
target-libquadmath \
target-libgfortran \
is_elf=no
case "${target}" in
*-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
- | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
+ | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
| *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
- | *-*-solaris2* | *-*-nto*)
+ | *-*-solaris2* | *-*-nto* | *-*-nacl*)
case "${target}" in
*-*-linux*aout* | *-*-linux*oldld*)
;;
fi
+# Check whether --enable-libstdcxx was given.
+if test "${enable_libstdcxx+set}" = set; then :
+ enableval=$enable_libstdcxx; ENABLE_LIBSTDCXX=$enableval
+else
+ ENABLE_LIBSTDCXX=default
+fi
+
+if test "${ENABLE_LIBSTDCXX}" = "no" ; then
+ noconfigdirs="$noconfigdirs libstdc++-v3"
+fi
+
# Save it here so that, even in case of --enable-libgcj, if the Java
# front-end isn't enabled, we still get libgcj disabled.
libgcj_saved=$libgcj
fi
-# Disable libmudflap on some systems.
-if test x$enable_libmudflap = x ; then
- case "${target}" in
- *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
- # Enable libmudflap by default in GNU and friends.
- ;;
- *-*-freebsd*)
- # Enable libmudflap by default in FreeBSD.
- ;;
- *)
- # Disable it by default everywhere else.
- noconfigdirs="$noconfigdirs target-libmudflap"
- ;;
- esac
-fi
-
# Disable libgomp on non POSIX hosted systems.
if test x$enable_libgomp = x ; then
# Enable libgomp by default on hosted POSIX systems.
fi
fi
+# Disable libcilkrts on unsupported systems.
+if test -d ${srcdir}/libcilkrts; then
+ if test x$enable_libcilkrts = x; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libcilkrts support" >&5
+$as_echo_n "checking for libcilkrts support... " >&6; }
+ if (srcdir=${srcdir}/libcilkrts; \
+ . ${srcdir}/configure.tgt; \
+ test -n "$UNSUPPORTED")
+ then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ noconfigdirs="$noconfigdirs target-libcilkrts"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ fi
+ fi
+fi
+
# Disable libitm on unsupported systems.
if test -d ${srcdir}/libitm; then
if test x$enable_libitm = x; then
fi
fi
+# Disable libsanitizer on unsupported systems.
+if test -d ${srcdir}/libsanitizer; then
+ if test x$enable_libsanitizer = x; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libsanitizer support" >&5
+$as_echo_n "checking for libsanitizer support... " >&6; }
+ if (srcdir=${srcdir}/libsanitizer; \
+ . ${srcdir}/configure.tgt; \
+ test -n "$UNSUPPORTED")
+ then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ noconfigdirs="$noconfigdirs target-libsanitizer"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ fi
+ fi
+fi
+
+# Disable libvtv on unsupported systems.
+if test -d ${srcdir}/libvtv; then
+ if test x$enable_libvtv = x; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libvtv support" >&5
+$as_echo_n "checking for libvtv support... " >&6; }
+ if (srcdir=${srcdir}/libvtv; \
+ . ${srcdir}/configure.tgt; \
+ test "$VTV_SUPPORTED" != "yes")
+ then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ noconfigdirs="$noconfigdirs target-libvtv"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ fi
+ fi
+fi
+
# Disable libquadmath for some systems.
case "${target}" in
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libquadmath"
+ ;;
# libquadmath is unused on AIX and libquadmath build process use of
# LD_LIBRARY_PATH can break AIX bootstrap.
powerpc-*-aix* | rs6000-*-aix*)
;;
esac
-# Disable libquadmath for some systems.
-case "${target}" in
- avr-*-*)
- noconfigdirs="$noconfigdirs target-libquadmath"
- ;;
-esac
-
# Disable libstdc++-v3 for some systems.
-case "${target}" in
- *-*-vxworks*)
- # VxWorks uses the Dinkumware C++ library.
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
- arm*-wince-pe*)
- # the C++ libraries don't build on top of CE's C libraries
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
- avr-*-*)
- noconfigdirs="$noconfigdirs target-libstdc++-v3"
- ;;
-esac
+# Allow user to override this if they pass --enable-libstdc++-v3
+if test "${ENABLE_LIBSTDCXX}" = "default" ; then
+ case "${target}" in
+ *-*-vxworks*)
+ # VxWorks uses the Dinkumware C++ library.
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ arm*-wince-pe*)
+ # the C++ libraries don't build on top of CE's C libraries
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ esac
+fi
# Disable Fortran for some systems.
case "${target}" in
# Disable Java if libffi is not supported.
case "${target}" in
+ aarch64-*-*)
+ ;;
alpha*-*-*)
;;
arm*-*-*)
;;
esac
+# Disable libgo for some systems where it is known to not work.
+# For testing, you can easily override this with --enable-libgo.
+if test x$enable_libgo = x; then
+ case "${target}" in
+ *-*-darwin*)
+ # PR 46986
+ noconfigdirs="$noconfigdirs target-libgo"
+ ;;
+ *-*-cygwin* | *-*-mingw*)
+ noconfigdirs="$noconfigdirs target-libgo"
+ ;;
+ *-*-aix*)
+ noconfigdirs="$noconfigdirs target-libgo"
+ ;;
+ esac
+fi
+
# Default libgloss CPU subdirectory.
libgloss_dir="$target_cpu"
sh*-*-pe|mips*-*-pe|*arm-wince-pe)
libgloss_dir=wince
;;
+ aarch64*-*-* )
+ libgloss_dir=aarch64
+ ;;
arm*-*-*)
libgloss_dir=arm
;;
sh*-*-pe|mips*-*-pe|*arm-wince-pe)
noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
;;
- arc-*-*)
+ arc-*-*|arceb-*-*)
noconfigdirs="$noconfigdirs target-libgloss"
;;
arm-*-pe*)
noconfigdirs="$noconfigdirs gprof target-libgloss"
;;
mips*-*-bsd*)
- noconfigdirs="$noconfigdirs gprof target-libgloss"
+ noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
;;
mips*-*-linux*)
;;
+ mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
+ | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
+ noconfigdirs="$noconfigdirs ld gas gprof"
+ ;;
mips*-*-*)
noconfigdirs="$noconfigdirs gprof"
;;
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
+
+#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
+#error -static-libstdc++ not implemented
+#endif
int main() {}
_ACEOF
if ac_fn_cxx_try_link "$LINENO"; then :
isllibs='-L$$r/$(HOST_SUBDIR)/isl/'"$lt_cv_objdir"' '
islinc='-I$$r/$(HOST_SUBDIR)/isl/include -I$$s/isl/include'
ENABLE_ISL_CHECK=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree ISL, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree ISL, disabling version check" >&2;}
fi
CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
LIBS="${_isl_saved_LIBS} -lisl"
- echo $CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.10 of ISL" >&5
$as_echo_n "checking for version 0.10 of ISL... " >&6; }
-if test "${gcc_cv_isl+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- if test "$cross_compiling" = yes; then :
+ if test "$cross_compiling" = yes; then :
gcc_cv_isl=yes
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+$as_echo "$gcc_cv_isl" >&6; }
+
+ CFLAGS=$_isl_saved_CFLAGS
+ LDFLAGS=$_isl_saved_LDFLAGS
+ LIBS=$_isl_saved_LIBS
+ fi
+
+
+ if test "${gcc_cv_isl}" = no ; then
+
+ if test "${ENABLE_ISL_CHECK}" = yes ; then
+ _isl_saved_CFLAGS=$CFLAGS
+ _isl_saved_LDFLAGS=$LDFLAGS
+ _isl_saved_LIBS=$LIBS
+
+ CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
+ LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
+ LIBS="${_isl_saved_LIBS} -lisl"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.11 of ISL" >&5
+$as_echo_n "checking for version 0.11 of ISL... " >&6; }
+ if test "$cross_compiling" = yes; then :
+ gcc_cv_isl=yes
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <isl/version.h>
+ #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.11", strlen ("isl-0.11")) != 0)
+ return 1;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ gcc_cv_isl=yes
+else
+ gcc_cv_isl=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
$as_echo "$gcc_cv_isl" >&6; }
CFLAGS=$_isl_saved_CFLAGS
fi
+ if test "${gcc_cv_isl}" = no ; then
+
+ if test "${ENABLE_ISL_CHECK}" = yes ; then
+ _isl_saved_CFLAGS=$CFLAGS
+ _isl_saved_LDFLAGS=$LDFLAGS
+ _isl_saved_LIBS=$LIBS
+
+ CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
+ LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
+ LIBS="${_isl_saved_LIBS} -lisl"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.12 of ISL" >&5
+$as_echo_n "checking for version 0.12 of ISL... " >&6; }
+ if test "$cross_compiling" = yes; then :
+ gcc_cv_isl=yes
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <isl/version.h>
+ #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.12", strlen ("isl-0.12")) != 0)
+ return 1;
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ gcc_cv_isl=yes
+else
+ gcc_cv_isl=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+$as_echo "$gcc_cv_isl" >&6; }
+
+ CFLAGS=$_isl_saved_CFLAGS
+ LDFLAGS=$_isl_saved_LDFLAGS
+ LIBS=$_isl_saved_LIBS
+ fi
+
+
+ fi
+ fi
if test "x${with_cloog_lib}" != x; then
clooglibs="-L$with_cloog_lib"
fi
- if test "x${clooginc}" = x && test "x${clooglibs}" = x \
+ if test "x${clooginc}" = x && test "x${clooglibs}" = x \
&& test -d ${srcdir}/cloog; then
clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include -I'${srcdir}'/cloog/include '
+ ENABLE_CLOOG_CHECK=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree CLooG, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree CLooG, disabling version check" >&2;}
fi
clooginc="-DCLOOG_INT_GMP ${clooginc}"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.17.0 of CLooG" >&5
$as_echo_n "checking for version 0.17.0 of CLooG... " >&6; }
-if test "${gcc_cv_cloog+set}" = set; then :
- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include "cloog/version.h"
int
gcc_cv_cloog=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+$as_echo "$gcc_cv_cloog" >&6; }
+
+ CFLAGS=$_cloog_saved_CFLAGS
+ LDFLAGS=$_cloog_saved_LDFLAGS
+ fi
+
+
+ if test "${gcc_cv_cloog}" = no ; then
+
+
+
+ if test "${ENABLE_CLOOG_CHECK}" = yes ; then
+ _cloog_saved_CFLAGS=$CFLAGS
+ _cloog_saved_LDFLAGS=$LDFLAGS
+
+ CFLAGS="${_cloog_saved_CFLAGS} ${clooginc} ${islinc} ${gmpinc}"
+ LDFLAGS="${_cloog_saved_LDFLAGS} ${clooglibs} ${isllibs} ${gmplib}"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.18.0 of CLooG" >&5
+$as_echo_n "checking for version 0.18.0 of CLooG... " >&6; }
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include "cloog/version.h"
+int
+main ()
+{
+#if CLOOG_VERSION_MAJOR != 0 \
+ || CLOOG_VERSION_MINOR != 18 \
+ || CLOOG_VERSION_REVISION < 0
+ choke me
+ #endif
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ gcc_cv_cloog=yes
+else
+ gcc_cv_cloog=no
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
$as_echo "$gcc_cv_cloog" >&6; }
CFLAGS=$_cloog_saved_CFLAGS
fi
+ fi
;;
esac
-# Disable libitm if we're not building C++
+# Disable libitm, libsanitizer, libvtv if we're not building C++
case ,${enable_languages}, in
*,c++,*) ;;
*)
- noconfigdirs="$noconfigdirs target-libitm"
+ noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
;;
esac
bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
fi
+# If we are building libsanitizer, bootstrap it.
+if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1 ; then
+ bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
+fi
+
+# If we are building libvtv, bootstrap it.
+if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 ; then
+ bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
+fi
+
# Determine whether gdb needs tk/tcl or not.
# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
# and in that case we want gdb to be built without tk. Ugh!
target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
fi
+# Special user-friendly check for native x86_64-linux build, if
+# multilib is not explicitly enabled.
+case "$target:$have_compiler:$host:$target:$enable_multilib" in
+ x86_64-*linux*:yes:$build:$build:)
+ # Make sure we have a developement environment that handles 32-bit
+ dev64=no
+ echo "int main () { return 0; }" > conftest.c
+ ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
+ if test $? = 0 ; then
+ if test -s conftest || test -s conftest.exe ; then
+ dev64=yes
+ fi
+ fi
+ rm -f conftest*
+ if test x${dev64} != xyes ; then
+ as_fn_error "I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib." "$LINENO" 5
+ fi
+ ;;
+esac
+
# Default to --enable-multilib.
if test x${enable_multilib} = x ; then
target_configargs="--enable-multilib ${target_configargs}"
*" --with-newlib "*)
case "$target" in
*-cygwin*)
- FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
+ FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
;;
esac
esac
if test $ok = yes; then
# An in-tree tool is available and we can use it
- CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
+ CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: just compiled" >&5
$as_echo "just compiled" >&6; }
elif expr "x$CXX_FOR_TARGET" : "x/" > /dev/null; then
esac
if test $ok = yes; then
# An in-tree tool is available and we can use it
- RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
+ RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: just compiled" >&5
$as_echo "just compiled" >&6; }
elif expr "x$RAW_CXX_FOR_TARGET" : "x/" > /dev/null; then
esac
+# Enable --enable-host-shared.
+# Check whether --enable-host-shared was given.
+if test "${enable_host_shared+set}" = set; then :
+ enableval=$enable_host_shared; host_shared=$enableval
+else
+ host_shared=no
+fi
+
+
+
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"