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-rw-r--r--include/shadow.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/shadow.h b/include/shadow.h
index 5e7f943bc0..be40eb42fa 100644
--- a/include/shadow.h
+++ b/include/shadow.h
@@ -1,3 +1,4 @@
+#ifndef _SHADOW_H
 #include <shadow/shadow.h>
 
 /* Now define the internal interfaces.  */
@@ -14,3 +15,4 @@ extern int __fgetspent_r __P ((FILE *__stream, struct spwd *__result_buf,
 			       struct spwd **__result));
 extern int __lckpwdf __P ((void));
 extern int __ulckpwdf __P ((void));
+#endif