--- src/uipp/dxl/os2.c.orig	Wed Jun 30 19:15:27 1999
+++ src/uipp/dxl/os2.c	Mon Aug  2 16:19:28 1999
@@ -13,6 +13,8 @@
 
 #if defined(HAVE_TYPES_H)
 #include <types.h>
+#else
+#include <sys/types.h>
 #endif
 
 #if defined(windows) && defined(HAVE_WINSOCK_H)
