Merge from gnulib.

This incorporates the following changes:
2013-09-19 stdio: OS X port of putc_unlocked + extern inline
2013-09-19 signal: OS X port of sigaddset etc. + extern inline
2013-09-19 extern-inline: do not always suppress extern inline on OS X
2013-09-17 getgroups: statement without effect
2013-08-28 headers: check that _GL_INLINE_HEADER_BEGIN is defined

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/getgroups.c b/lib/getgroups.c
index 9856adc1a4d..e71b5439c7e 100644
--- a/lib/getgroups.c
+++ b/lib/getgroups.c
@@ -86,7 +86,7 @@ rpl_getgroups (int n, gid_t *group)
         }
       saved_errno = errno;
       free (gbuf);
-      errno == saved_errno;
+      errno = saved_errno;
       return result;
     }