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Diffstat (limited to 'sysdeps/unix/sysv/linux/bits/sigaction.h')
-rw-r--r--sysdeps/unix/sysv/linux/bits/sigaction.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/sigaction.h b/sysdeps/unix/sysv/linux/bits/sigaction.h
index fd29373e10..a4225c8787 100644
--- a/sysdeps/unix/sysv/linux/bits/sigaction.h
+++ b/sysdeps/unix/sysv/linux/bits/sigaction.h
@@ -16,6 +16,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#ifndef _BITS_SIGACTION_H
+#define _BITS_SIGACTION_H 1
+
 #ifndef _SIGNAL_H
 # error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
 #endif
@@ -76,3 +79,5 @@ struct sigaction
 #define	SIG_BLOCK     0		 /* Block signals.  */
 #define	SIG_UNBLOCK   1		 /* Unblock signals.  */
 #define	SIG_SETMASK   2		 /* Set the set of blocked signals.  */
+
+#endif