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authorUlrich Drepper <drepper@redhat.com>2005-01-06 21:01:25 +0000
committerUlrich Drepper <drepper@redhat.com>2005-01-06 21:01:25 +0000
commit5cf53cc2083e0bc77d6d7301fff8c31038a410a2 (patch)
tree1d59ed6fc2eb95bfd1946b79e5b4761978afe5b4 /misc/sys
parentbb803bff5cb97b3de94896aba1c4ec0d67227524 (diff)
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Update.
2005-01-06 Ulrich Drepper <drepper@redhat.com> * misc/sys/cdefs.h: Define __wur. * libio/stdio.h: Use __wur for a number of interfaces. * posix/unistd.h: Likewise. * posix/regex_internal.c (free_state): Free word_trtable.
Diffstat (limited to 'misc/sys')
-rw-r--r--misc/sys/cdefs.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 475cf62961..6ac21013cc 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -255,6 +255,14 @@
# define __nonnull(params)
#endif
+/* If fortification mode, we warn about unused results of certain
+ function calls which can lead to problems. */
+#if __GNUC_PREREQ (3,4) && __USE_FORTIFY_LEVEL > 0
+# define __wur __attribute__ ((__warn_unused_result__))
+#else
+# define __wur /* Ignore */
+#endif
+
/* It is possible to compile containing GCC extensions even if GCC is
run in pedantic mode if the uses are carefully marked using the
`__extension__' keyword. But this is not generally available before