--- OLD/xc/lib/lbxutil/image/dpackbits.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/lib/lbxutil/image/dpackbits.c	Thu Jan  1 00:00:00 1970
@@ -23,6 +23,8 @@
  * OF THIS SOFTWARE.
  */
 
+#include <strings.h>
+
 #include <X11/Xfuncproto.h>
 #include "lbximage.h"