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| author | Ulrich Drepper <drepper@redhat.com> | 2004-12-15 18:54:41 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-15 18:54:41 +0000 |
| commit | cbdb12dec1284048430dbd9c354475ddffd7047e (patch) | |
| tree | 92289c3e645fd213d888e791740a09f7faf2b844 /configure.in | |
| parent | f8d8a2650ce753bcc162ccfa55f79a6967c21d06 (diff) | |
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Update.
2004-09-08 H.J. Lu <hongjiu.lu@intel.com>
* Makeconfig (libunwind): New.
(libgcc_eh): Add $(libunwind).
(gnulib): Always set to -lgcc $(libgcc_eh).
(static-gnulib): Always set to -lgcc -lgcc_eh $(libunwind).
(libc.so-gnulib): New.
* Makerules (LDLIBS-c.so): Use $(libc.so-gnulib) instead of
$(static-gnulib).
* configure.in (libc_cv_cc_with_libunwind): Set to yes if gcc
uses -lunwind for static binaries.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/configure.in b/configure.in index 9b8a1eb26d..559bee0173 100644 --- a/configure.in +++ b/configure.in @@ -1260,13 +1260,17 @@ EOF fi AC_CACHE_CHECK(for libunwind-support in compiler, - libc_cv_cc_with_libunwind, [dnl - AC_TRY_LINK([#include <libunwind.h>], [ - unw_context_t uc; - unw_cursor_t c; - unw_getcontext (&uc); - unw_init_local (&c, &uc)], - libc_cv_cc_with_libunwind=yes, libc_cv_cc_with_libunwind=no)]) + libc_cv_cc_with_libunwind, [ + cat > conftest.c <<EOF +int main (void) { return 0; } +EOF + if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ + conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then + libc_cv_cc_with_libunwind=yes + else + libc_cv_cc_with_libunwind=no + fi + rm -f conftest*]) AC_SUBST(libc_cv_cc_with_libunwind) if test $libc_cv_cc_with_libunwind = yes; then AC_DEFINE(HAVE_CC_WITH_LIBUNWIND) |