[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.1rc2-9-g9fd89d3

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http://git.mpich.org/mpich.git/commitdiff/9fd89d376481a344dba1203d70fa432605b309ed

commit 9fd89d376481a344dba1203d70fa432605b309ed
Author: Ken Raffenetti <raffenet at mcs.anl.gov>
Date:   Wed Nov 20 22:06:58 2013 -0600

    correct alias option test for weak attributes
    
    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..5a9b270 100644
--- a/confdb/aclocal_cc.m4
+++ b/confdb/aclocal_cc.m4
@@ -361,7 +361,8 @@ 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],
 pac_cv_attr_weak_alias,[
-AC_TRY_COMPILE([int foo(int) __attribute__((weak,alias("__foo")));],[int a;],
+AC_TRY_LINK([void __foo(int c) {}
+void foo(int c) __attribute__((weak,alias("__foo")));],[foo(0);],
 pac_cv_attr_weak_alias=yes,pac_cv_attr_weak_alias=no)])
 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 |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)


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