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-rw-r--r--string/envz.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/string/envz.h b/string/envz.h
index 23aaed6119..dc6f55725d 100644
--- a/string/envz.h
+++ b/string/envz.h
@@ -17,9 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef __ENVZ_H__
+#ifndef _ENVZ_H
+#define _ENVZ_H	1
 
-#define __ENVZ_H__	1
 #include <features.h>
 
 #include <errno.h>
@@ -60,4 +60,4 @@ extern void envz_strip __P ((char **__envz, size_t *__envz_len));
 
 __END_DECLS
 
-#endif /* __ENVZ_H__ */
+#endif /* envz.h */