X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Flock.h;h=be99139dce7a9e787d5c05564cbe0e38fa950928;hb=5fa5d3d767b29cf1d757609afbb56459b09743fa;hp=f82e4a32f0a8b90209528511b9a82bf07cd5a701;hpb=d9ef827a069d52ca3e26e600b8f7ac35db1324d1;p=gnulib.git

diff --git a/lib/lock.h b/lib/lock.h
index f82e4a32f..be99139dc 100644
--- a/lib/lock.h
+++ b/lib/lock.h
@@ -59,6 +59,9 @@
 */
 
 
+#ifndef _LOCK_H
+#define _LOCK_H
+
 /* ========================================================================= */
 
 #if USE_POSIX_THREADS
@@ -792,3 +795,7 @@ typedef int gl_once_t;
     while (0)
 
 #endif
+
+/* ========================================================================= */
+
+#endif /* _LOCK_H */