This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
4.2/4.3 PATCH: Fix libgomp link tests on IRIX 6 (PR libgomp/32538)
- From: Rainer Orth <ro at techfak dot uni-bielefeld dot de>
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 5 Jul 2007 19:58:53 +0200 (MEST)
- Subject: 4.2/4.3 PATCH: Fix libgomp link tests on IRIX 6 (PR libgomp/32538)
As described in the PR, all libgomp link tests fail on IRIX 6 since
copysignl is undefined. The following patch fixes this, with the
unfortunate side effect that every program is linked with libm now.
I haven't yet applied this since I don't know yet why only IRIX seems to be
affected: both alpha-dec-osf* and *-*-solaris* have no references to
copysignl in their libgcc. Is this still the right approach or am I just
papering over an underlying problem?
Rainer
-----------------------------------------------------------------------------
Rainer Orth, Faculty of Technology, Bielefeld University
Mon Jul 2 13:16:32 2007 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
PR libgomp/32538
* config/mips/iris6.h (LIBGCC_SPEC): Add libm.
Index: gcc/config/mips/iris6.h
===================================================================
--- gcc/config/mips/iris6.h (revision 125953)
+++ gcc/config/mips/iris6.h (working copy)
@@ -96,10 +96,11 @@ Boston, MA 02110-1301, USA. */
" %{pthread:-lpthread} %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc " \
SUBTARGET_WARN_UNUSED_SPEC "}"
-/* Avoid getting two warnings for libgcc.a everytime we link. */
+/* Avoid getting two warnings for libgcc.a everytime we link. libgcc.a
+ contains references to copysignl, so link with libm to resolve them. */
#undef LIBGCC_SPEC
#define LIBGCC_SPEC \
- SUBTARGET_DONT_WARN_UNUSED_SPEC " -lgcc " SUBTARGET_WARN_UNUSED_SPEC
+ SUBTARGET_DONT_WARN_UNUSED_SPEC " -lgcc -lm " SUBTARGET_WARN_UNUSED_SPEC
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \