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authorPaolo Bonzini <bonzini@gnu.org>2006-12-19 12:52:58 +0000
committerPaolo Bonzini <bonzini@gnu.org>2006-12-19 12:52:58 +0000
commit8a0d8a5c46bc6c330c837546cb384b9781ad6723 (patch)
treea9a842627a540ed9ad4b1f53285891d50d834108 /config/tls.m4
parent3d68c10f9f11211d0f486e4978a6fd29dfd58c53 (diff)
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2006-12-19 Paolo Bonzini <bonzini@gnu.org>
Sync with gcc: 2006-12-19 Paolo Bonzini <bonzini@gnu.org> * configure.in: Remove "$build" case for powerpc-*-darwin* since it only affects bootstrap and could be tested on "$host" as well. * configure: Regenerate. * config/mh-ppc-darwin: Add to the stage1 cflags here. 2006-12-19 Paolo Bonzini <bonzini@gnu.org> PR bootstrap/29544 * Makefile.def (flags_to_pass): Add STAGE1_CHECKING. (bootstrap_stage): Add STAGE1_CHECKING to stage1 configure flags, move here comment from Makefile.tpl. * Makefile.tpl: Move some definitions higher in the file. (STAGE1_CHECKING): New. * configure.in: Add --enable-stage1-checking. * configure: Regenerate. * Makefile.in: Regenerate. 2006-12-03 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * configure.in: Update error message for missing GMP/MPFR. * configure: Regenerate. 2006-12-02 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * configure.in: Update MPFR version in error message. * configure: Regenerate. 2006-11-26 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * configure.in (--with-mpfr-dir, --with-gmp-dir): Remove flags. (--with-mpfr-include, --with-mpfr-lib, --with-gmp-include, --with-gmp-lib): New flags. * configure: Regenerate. config: 2006-12-04 Eric Botcazou <ebotcazou@libertysurf.fr> * tls.m4 (GCC_CHECK_TLS): Do not test TLS with static linking if static linking doesn't even work.
Diffstat (limited to 'config/tls.m4')
-rw-r--r--config/tls.m410
1 files changed, 6 insertions, 4 deletions
diff --git a/config/tls.m4 b/config/tls.m4
index b66b6d7..41f11ab 100644
--- a/config/tls.m4
+++ b/config/tls.m4
@@ -5,12 +5,14 @@ AC_DEFUN([GCC_CHECK_TLS], [
have_tls, [
AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
[dnl If the test case passed with dynamic linking, try again with
- dnl static linking. This fails at least with some older Red Hat
- dnl releases.
+ dnl static linking, but only if static linking is supported (not
+ dnl on Solaris 10). This fails with some older Red Hat releases.
save_LDFLAGS="$LDFLAGS"
LDFLAGS="-static $LDFLAGS"
- AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
- [have_tls=yes], [have_tls=no], [])
+ AC_LINK_IFELSE([int main() { return 0; }],
+ AC_RUN_IFELSE([__thread int a; int b; int main() { return a = b; }],
+ [have_tls=yes], [have_tls=no],[]),
+ [have_tls=yes])
LDFLAGS="$save_LDFLAGS"],
[have_tls=no],
[AC_LINK_IFELSE([__thread int a; int b; int main() { return a = b; }],