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Diffstat (limited to 'arch/x86_64/bits/signal.h')
-rw-r--r--arch/x86_64/bits/signal.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/x86_64/bits/signal.h b/arch/x86_64/bits/signal.h
index 02c54d5a..a9690488 100644
--- a/arch/x86_64/bits/signal.h
+++ b/arch/x86_64/bits/signal.h
@@ -1,3 +1,6 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+
 struct __siginfo
 {
 	int si_signo;
@@ -65,12 +68,17 @@ struct __siginfo
 #define SIG_UNBLOCK   1
 #define SIG_SETMASK   2
 
-#define SIG_ERR  ((void (*)(int))-1)
-#define SIG_DFL  ((void (*)(int)) 0)
-#define SIG_IGN  ((void (*)(int)) 1)
 #define SIG_HOLD ((void (*)(int)) 2)
 
+#endif
+
+#ifdef _GNU_SOURCE
 #define NSIG      64
+#endif
+
+#define SIG_ERR  ((void (*)(int))-1)
+#define SIG_DFL  ((void (*)(int)) 0)
+#define SIG_IGN  ((void (*)(int)) 1)
 
 #define SIGHUP    1
 #define SIGINT    2