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-rw-r--r--libc/signal/sigset-cvt-mask.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libc/signal/sigset-cvt-mask.h b/libc/signal/sigset-cvt-mask.h
index d4c2dc7ca..93ea36f5e 100644
--- a/libc/signal/sigset-cvt-mask.h
+++ b/libc/signal/sigset-cvt-mask.h
@@ -19,6 +19,9 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
+#ifndef _SIGSET_CVT_MASK_H
+#define _SIGSET_CVT_MASK_H
+
#include <string.h>
static __inline__ void __attribute__ ((unused))
@@ -36,3 +39,5 @@ sigset_get_old_mask (const sigset_t *set)
{
return (unsigned int) set->__val[0];
}
+
+#endif