# Find the native compiler
AC_PROG_CC
AM_PROG_CC_C_O
+ACX_PROG_GNAT([-I"$srcdir"/ada])
+
# autoconf is lame and doesn't give us any substitution variable for this.
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = no"; then
NO_MINUS_C_MINUS_O=yes
# Check C compiler features
# -------------------------
+AC_USE_SYSTEM_EXTENSIONS
AC_PROG_CPP
AC_C_INLINE
ac_gc_always_collect= ; ac_rtl_checking= ;
ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
ac_tree_checking=1 ; ac_valgrind_checking= ;
- ac_types_checking= ;;
+ ac_types_checking=1 ;;
no|none) ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
ac_fold_checking= ; ac_gc_checking= ;
ac_gc_always_collect= ; ac_rtl_checking= ;
# Checks for C headers
# --------------------
-AC_MSG_CHECKING(for GNU C library)
-AC_CACHE_VAL(gcc_cv_glibc,
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
- [[#include <features.h>]], [[
-#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__)
-#error Not a GNU C library system
-#endif]])],
- [gcc_cv_glibc=yes],
- [gcc_cv_glibc=no])])
-AC_MSG_RESULT($gcc_cv_glibc)
-if test $gcc_cv_glibc = yes; then
- AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library])
-fi
-
# Need to reject headers which give warnings, so that the -Werror bootstrap
# works later. *sigh* This needs to come before all header checks.
AC_PROG_CPP_WERROR
[ --enable-secureplt enable -msecure-plt by default for PowerPC],
[], [])
+AC_ARG_ENABLE(cld,
+[ --enable-cld enable -mcld by default for 32bit x86], [],
+[enable_cld=no])
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[ --disable-win32-registry
# then define inhibit_libc in LIBGCC2_CFLAGS.
# This prevents libgcc2 from containing any code which requires libc
# support.
-inhibit_libc=false
+: ${inhibit_libc=false}
if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
test x$with_newlib = xyes ; } &&
{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
# Assembler & linker features
# ---------------------------
+# During stage 2, ld is actually gcc/collect-ld, which is a small script to
+# discern between when to use prev-ld/ld-new and when to use ld/ld-new.
+# However when ld-new is first executed from the build tree, libtool will
+# relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
+# to the build tree. While doing this we need to use the previous-stage
+# linker, or we have an infinite loop. The presence of a shell script as
+# ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
+# the gcc/collect-ld script. So we need to know how libtool works, or
+# exec-tool will fail.
+
+m4_defun([_LT_CONFIG_COMMANDS], [])
+AC_PROG_LIBTOOL
+AC_SUBST(objdir)
+AC_SUBST(enable_fast_install)
+
# Identify the assembler which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the assembler
# which will be driven by the driver program.
fi
subdir="`echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
subdirs="$subdirs $subdir"
+
+ # $gcc_subdir is where the gcc integration files are to be found
+ # for a language, both for internal compiler purposes (compiler
+ # sources implementing front-end to GCC tree converters), and for
+ # build infrastructure purposes (Make-lang.in, etc.)
+ #
+ # This will be <subdir> (relative to $srcdir) if a line like
+ # gcc_subdir="<subdir>" or gcc_subdir=<subdir>
+ # is found in <langdir>/config-lang.in, and will remain <langdir>
+ # otherwise.
+ #
+ # Except for the language alias (fetched above), the regular
+ # "config-lang.in" contents are always retrieved from $gcc_subdir,
+ # so a <langdir>/config-lang.in setting gcc_subdir typically sets
+ # only this and the language alias.
+
+ gcc_subdir=`sed -n -e 's,^gcc_subdir=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^gcc_subdir=\([^ ]*\).*$,\1,p' $lang`
+ if [ "$gcc_subdir" = "" ]; then
+ gcc_subdir="$subdir"
+ fi
+
case ",$enable_languages," in
*,$lang_alias,*)
all_selected_languages="$all_selected_languages $lang_alias"
- if test -f $srcdir/$subdir/lang-specs.h; then
- lang_specs_files="$lang_specs_files $srcdir/$subdir/lang-specs.h"
+ if test -f $srcdir/$gcc_subdir/lang-specs.h; then
+ lang_specs_files="$lang_specs_files $srcdir/$gcc_subdir/lang-specs.h"
fi
;;
esac
outputs=
gtfiles=
subdir_requires=
- . ${srcdir}/$subdir/config-lang.in
+ . ${srcdir}/$gcc_subdir/config-lang.in
if test "x$language" = x
then
- echo "${srcdir}/$subdir/config-lang.in doesn't set \$language." 1>&2
+ echo "${srcdir}/$gcc_subdir/config-lang.in doesn't set \$language." 1>&2
exit 1
fi
esac
$ok || continue
- all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$subdir/Make-lang.in"
- if test -f $srcdir/$subdir/lang.opt; then
- lang_opt_files="$lang_opt_files $srcdir/$subdir/lang.opt"
+ all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
+ if test -f $srcdir/$gcc_subdir/lang.opt; then
+ lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
fi
- if test -f $srcdir/$subdir/$subdir-tree.def; then
- lang_tree_files="$lang_tree_files $srcdir/$subdir/$subdir-tree.def"
+ if test -f $srcdir/$gcc_subdir/$subdir-tree.def; then
+ lang_tree_files="$lang_tree_files $srcdir/$gcc_subdir/$subdir-tree.def"
fi
- if test -f ${srcdir}/$subdir/Makefile.in
- then all_lang_makefiles="$subdir/Makefile"
+ if test -f ${srcdir}/$gcc_subdir/Makefile.in
+ then all_lang_makefiles="$gcc_subdir/Makefile"
fi
all_languages="$all_languages $language"
all_compilers="$all_compilers $compilers"
fi)
AC_SUBST(slibdir)
-objdir=`${PWDCMD-pwd}`
-AC_SUBST(objdir)
-
AC_ARG_WITH(datarootdir,
[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
datarootdir="\${prefix}/$with_datarootdir",
AC_SUBST(xm_defines)
AC_SUBST(c_target_objs)
AC_SUBST(cxx_target_objs)
+AC_SUBST(fortran_target_objs)
AC_SUBST(target_cpu_default)
AC_SUBST_FILE(language_hooks)
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