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-rw-r--r--bits/sigaction.h20
1 files changed, 14 insertions, 6 deletions
diff --git a/bits/sigaction.h b/bits/sigaction.h
index e23a96cd9d..adcc276cc8 100644
--- a/bits/sigaction.h
+++ b/bits/sigaction.h
@@ -30,12 +30,20 @@
struct sigaction
{
/* Signal handler. */
- union {
- __sighandler_t sa_handler;
- void (*sa_sigaction) (int, siginfo_t *, void *);
- } __sigaction_handler;
-# define sa_handler __sigaction_handler.sa_handler
-# define sa_sigaction __sigaction_handler.sa_sigaction
+#ifdef __USE_POSIX199309
+ union
+ {
+ /* Used if SA_SIGINFO is not set. */
+ __sighandler_t sa_handler;
+ /* Used if SA_SIGINFO is set. */
+ void (*sa_sigaction) (int, siginfo_t *, void *);
+ }
+ __sigaction_handler;
+# define sa_handler __sigaction_handler.sa_handler
+# define sa_sigaction __sigaction_handler.sa_sigaction
+#else
+ __sighandler_t sa_handler;
+#endif
/* Additional set of signals to be blocked. */
__sigset_t sa_mask;