[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.1rc2-11-g0dcb614

mysql vizuser noreply at mpich.org
Mon Nov 25 21:36:16 CST 2013

This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "MPICH primary repository".

The branch, master has been updated
       via  0dcb61440ebcec65bc460c22c986b8d26e52a7ce (commit)
      from  3cbe6a0ef79c02fc4cf8c2695789359bec07d6cd (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------

commit 0dcb61440ebcec65bc460c22c986b8d26e52a7ce
Author: Ken Raffenetti <raffenet at mcs.anl.gov>
Date:   Fri Nov 22 10:46:00 2013 -0600

    strengthen test for weak alias attribute
    Adds the -Werror flag to this test because in cases like icc/osx
    the compiler only throws a warning that it will ignore function
    __attribute__ defs, but in this case we need to know if they actually
    Fixes #1980
    Signed-off-by: Antonio J. Pena <apenya at mcs.anl.gov>

diff --git a/confdb/aclocal_cc.m4 b/confdb/aclocal_cc.m4
index 1e5e87d..f8146e1 100644
--- a/confdb/aclocal_cc.m4
+++ b/confdb/aclocal_cc.m4
@@ -361,8 +361,18 @@ pac_cv_attr_weak_import=yes,pac_cv_attr_weak_import=no)])
 # Check if the alias option for weak attributes is allowed
 AC_CACHE_CHECK([whether __attribute__((weak,alias(...))) allowed],
+# We add -Werror if it's gcc to force an error exit if the weak attribute
+# isn't understood
+if test $GCC = yes ; then
+  CFLAGS=-Werror
 AC_TRY_COMPILE([int foo(int) __attribute__((weak,alias("__foo")));],[int a;],
+# Restore original CFLAGS
+if test $GCC = yes ; then
 if test "$pac_cv_attr_weak_alias" = "yes" ; then
     AC_DEFINE(HAVE_WEAK_ATTRIBUTE,1,[Attribute style weak pragma])


Summary of changes:
 confdb/aclocal_cc.m4 |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

MPICH primary repository

More information about the commits mailing list