diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 9d5e0858821..fc312e664d8 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-30  Andreas Jaeger  <aj@suse.de>
+
+	* concat.c: Include "config.h".
+
 2001-07-30  Andreas Jaeger  <aj@suse.de>
 
 	* regex.c: Declare wcs functions only if compiling with
diff --git a/libiberty/concat.c b/libiberty/concat.c
index 2e0ce4996e7..01270eadcf2 100644
--- a/libiberty/concat.c
+++ b/libiberty/concat.c
@@ -53,6 +53,9 @@ NOTES
 */
 
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 #include "ansidecl.h"
 #include "libiberty.h"
 #include <sys/types.h>		/* size_t */