--- soltools/mkdepend/def.h.old	2002-06-06 13:55:03.000000000 +0200
+++ soltools/mkdepend/def.h	2006-08-09 15:54:24.000000000 +0200
@@ -38,6 +38,10 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#ifndef WIN32
+#include <unistd.h>
+#endif
 
 #include <ctype.h>
 #ifndef X_NOT_POSIX
