# 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
AC_ARG_ENABLE(sjlj-exceptions,
[ --enable-sjlj-exceptions
arrange to use setjmp/longjmp exception handling],
-[sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
-AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
- [Define 0/1 to force the choice for exception handling model.])])
+[case $target in
+ *-*-hpux10*)
+ if test $enableval != yes; then
+ AC_MSG_WARN([dwarf2 exceptions not supported, sjlj exceptions forced])
+ enableval=yes
+ fi
+ ;;
+esac
+force_sjlj_exceptions=yes],
+[case $target in
+ *-*-hpux10*)
+ force_sjlj_exceptions=yes
+ enableval=yes
+ ;;
+ *)
+ force_sjlj_exceptions=no
+ ;;
+esac])
+if test $force_sjlj_exceptions = yes; then
+ sjlj=`if test $enableval = yes; then echo 1; else echo 0; fi`
+ AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
+ [Define 0/1 to force the choice for exception handling model.])
+fi
# For platforms with the unwind ABI which includes an unwind library,
# libunwind, we can choose to use the system libunwind.
# 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$with_headers" = xno ; } ; then
# Assembler & linker features
# ---------------------------
+# During stage 2, ld is actually gcc/collect-ld, which is a small script to
+# discern between when to use prev-ld/ld-new and when to use ld/ld-new.
+# However when ld-new is first executed from the build tree, libtool will
+# relink it as .libs/lt-ld-new, so that it can give it an RPATH that refers
+# to the build tree. While doing this we need to use the previous-stage
+# linker, or we have an infinite loop. The presence of a shell script as
+# ld/ld-new, and the fact that the script *uses ld itself*, is what confuses
+# the gcc/collect-ld script. So we need to know how libtool works, or
+# exec-tool will fail.
+
+m4_defun([_LT_CONFIG_COMMANDS], [])
+AC_PROG_LIBTOOL
+AC_SUBST(objdir)
+AC_SUBST(enable_fast_install)
+
# Identify the assembler which will work hand-in-glove with the newly
# built GCC, so that we can examine its features. This is the assembler
# which will be driven by the driver program.
fi)
AC_SUBST(slibdir)
-objdir=`${PWDCMD-pwd}`
-AC_SUBST(objdir)
-
AC_ARG_WITH(datarootdir,
[ --with-datarootdir=DIR Use DIR as the data root [[PREFIX/share]]],
datarootdir="\${prefix}/$with_datarootdir",