Include <config.h> if HAVE_CONFIG_H.

diff --git a/lib/strnlen.c b/lib/strnlen.c
index dd22db9..f5681ca 100644 (file)
--- a/lib/strnlen.c
+++ b/lib/strnlen.c
@@ -17,6 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
 #include <string.h>
 
 #ifndef HAVE_DECL_MEMCHR