AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
AC_SUBST(CROSS_SYSTEM_HEADER_DIR)
+AC_ARG_WITH(specs,
+ [AS_HELP_STRING([--with-specs=SPECS],
+ [add SPECS to driver command-line processing])],
+ [CONFIGURE_SPECS=$withval],
+ [CONFIGURE_SPECS=]
+)
+AC_SUBST(CONFIGURE_SPECS)
+
# Build with intermodule optimisations
AC_ARG_ENABLE(intermodule,
[ --enable-intermodule build the compiler in one step],
AC_PATH_PROG(gcc_cv_ld, $LD_FOR_TARGET)
fi])
+ORIGINAL_PLUGIN_LD_FOR_TARGET=$gcc_cv_ld
+PLUGIN_LD=`basename $gcc_cv_ld`
+AC_ARG_WITH(plugin-ld,
+[ --with-plugin-ld=[[ARG]] specify the plugin linker],
+[if test x"$withval" != x; then
+ ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
+ PLUGIN_LD="$withval"
+ fi])
+AC_SUBST(ORIGINAL_PLUGIN_LD_FOR_TARGET)
+AC_DEFINE_UNQUOTED(PLUGIN_LD, "$PLUGIN_LD", [Specify plugin linker])
+
ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
AC_SUBST(ORIGINAL_LD_FOR_TARGET)
case "$ORIGINAL_LD_FOR_TARGET" in
[ .hidden foobar
foobar:])
+changequote(,)dnl
+if test $in_tree_ld != yes ; then
+ ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
+ if echo "$ld_ver" | grep GNU > /dev/null; then
+ ld_vers=`echo $ld_ver | sed -n \
+ -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\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]*\.\([0-9]*\)'`
+ fi
+fi
+changequote([,])dnl
+
AC_CACHE_CHECK(linker for .hidden support, gcc_cv_ld_hidden,
[if test $in_tree_ld = yes ; then
gcc_cv_ld_hidden=no
else
changequote(,)dnl
gcc_cv_ld_hidden=yes
- ld_ver=`$gcc_cv_ld --version 2>/dev/null | sed 1q`
if echo "$ld_ver" | grep GNU > /dev/null; then
- ld_vers=`echo $ld_ver | sed -n \
- -e 's,^.*[ ]\([0-9][0-9]*\.[0-9][0-9]*.*\)$,\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
i[34567]86-*-* | x86_64-*-*)
changequote([,])dnl
case $target_os in
+ cygwin*)
+ # Full C++ conformance when using a shared libstdc++-v3 requires some
+ # support from the Cygwin DLL, which in more recent versions exports
+ # wrappers to aid in interposing and redirecting operators new, delete,
+ # etc., as per n2800 #17.6.4.6 [replacement.functions]. Check if we
+ # are configuring for a version of Cygwin that exports the wrappers.
+ if test x$host = x$target; then
+ AC_CHECK_FUNC([__wrap__Znaj],[gcc_ac_cygwin_dll_wrappers=yes],[gcc_ac_cygwin_dll_wrappers=no])
+ else
+ # Can't check presence of libc functions during cross-compile, so
+ # we just have to assume we're building for an up-to-date target.
+ gcc_ac_cygwin_dll_wrappers=yes
+ fi
+ AC_DEFINE_UNQUOTED(USE_CYGWIN_LIBSTDCXX_WRAPPERS,
+ [`if test $gcc_ac_cygwin_dll_wrappers = yes; then echo 1; else echo 0; fi`],
+ [Define if you want to generate code by default that assumes that the
+ Cygwin DLL exports wrappers to support libstdc++ function replacement.])
+ esac
+ case $target_os in
cygwin* | pe | mingw32*)
# Recent binutils allows the three-operand form of ".comm" on PE. This
# definition is used unconditionally to initialise the default state of
[ bl __tls_get_addr(x@tlsgd)],,
[AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
[Define if your assembler supports arg info for __tls_get_addr.])])
+
+ case $target in
+ *-*-aix*)
+ gcc_GAS_CHECK_FEATURE([.ref support],
+ gcc_cv_as_aix_ref, [2.21.0],,
+ [ .csect stuff[[rw]]
+ stuff:
+ .long 1
+ .extern sym
+ .ref sym
+ ],,
+ [AC_DEFINE(HAVE_AS_REF, 1,
+ [Define if your assembler supports .ref])])
+ ;;
+ esac
;;
mips*-*-*)
[.type foo, @gnu_unique_object],,
# Also check for ld.so support, i.e. glibc 2.11 or higher.
[if test x$host = x$build -a x$host = x$target &&
- glibcver=`ldd --version 2>/dev/null`; then
- glibcmajor=`expr "$glibcver" : "ldd (GNU libc) \([[0-9]]*\)"`
- glibcminor=`expr "$glibcver" : "ldd (GNU libc) [[0-9]]*\.\([[0-9]]*\)"`
+ glibcver=`ldd --version 2>/dev/null | sed 's/.* //;q'`; then
+ glibcmajor=`expr "$glibcver" : "\([0-9]*\)"`
+ glibcminor=`expr "$glibcver" : "[2-9]*\.\([0-9]*\)"`
glibcnum=`expr $glibcmajor \* 1000 + $glibcminor`
if test "$glibcnum" -ge 2011 ; then
enable_gnu_unique_object=yes
case "$target" in
*-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
- if test "x$with_sysroot" = x; then
+ if test "x$with_headers" != x; then
+ glibc_header_dir=$with_headers
+ elif test "x$with_sysroot" = x; then
glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
elif test "x$with_build_sysroot" != "x"; then
glibc_header_dir="${with_build_sysroot}/usr/include"
rm -f Make-hooks
touch Make-hooks
target_list="all.cross start.encap rest.encap tags \
- install-common install-man install-info install-pdf dvi pdf \
- html uninstall info man srcextra srcman srcinfo \
+ install-common install-man install-info install-pdf install-html dvi \
+ pdf html uninstall info man srcextra srcman srcinfo \
mostlyclean clean distclean maintainer-clean install-plugin"
for t in $target_list
AC_ARG_VAR(GMPLIBS,[How to link GMP])
AC_ARG_VAR(GMPINC,[How to find GMP include files])
-case "${GMPLIBS}" in
- *-lmpc*) AC_DEFINE(HAVE_mpc, 1, [Define if mpc is in use.]) ;;
-esac
-
AC_ARG_VAR(PPLLIBS,[How to link PPL])
AC_ARG_VAR(PPLINC,[How to find PPL include files])
pluginlibs=
if test x"$enable_plugin" = x"yes"; then
- # Check that the host supports -rdynamic and -ldl
- have_rdynamic=no
- have_dl=no
- saved_LDFLAGS="$LDFLAGS"
- saved_LIBS="$LIBS"
- LIBS=
-
- # Check -rdynamic
- LDFLAGS="$LDFLAGS -rdynamic"
- AC_MSG_CHECKING([for -rdynamic])
- AC_TRY_LINK([],[return 0;],
- [AC_MSG_RESULT([yes]); have_rdynamic=yes],
- [AC_MSG_RESULT([no])])
- if test x"$have_rdynamic" = x"yes" ; then
- pluginlibs="-rdynamic"
+
+ AC_MSG_CHECKING([for exported symbols])
+ echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c
+ ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1
+ if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ : # No need to use a flag
+ else
+ AC_MSG_CHECKING([for -rdynamic])
+ ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1
+ if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then
+ pluginlibs="-rdynamic"
+ else
+ enable_plugin=no
+ fi
fi
# Check -ldl
+ saved_LIBS="$LIBS"
AC_SEARCH_LIBS([dlopen], [dl])
if test x"$ac_cv_search_dlopen" = x"-ldl"; then
pluginlibs="$pluginlibs -ldl"
fi
+ LIBS="$saved_LIBS"
# Check that we can build shared objects with -fPIC -shared
+ saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -fPIC -shared"
AC_MSG_CHECKING([for -fPIC -shared])
AC_TRY_LINK(
pluginlibs=
enable_plugin=no
fi
+ LDFLAGS="$saved_LDFLAGS"
# If plugin support had been requested but not available, fail.
if test x"$enable_plugin" = x"no" ; then
-fPIC, -shared, -ldl and -rdynamic.])
fi
fi
-
- LDFLAGS="$saved_LDFLAGS"
- LIBS="$saved_LIBS"
fi
AC_SUBST(pluginlibs)
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