--- src/frame.c
+++ src/frame.c	2007-05-15 17:52:06.326432380 +0200
@@ -22,6 +22,9 @@ Boston, MA 02110-1301, USA.  */
 #include <config.h>
 
 #include <stdio.h>
+#ifdef STDC_HEADERS
+#include <stdlib.h>
+#endif
 #include "lisp.h"
 #include "charset.h"
 #ifdef HAVE_X_WINDOWS