$NetBSD$

--- libgu/gu_strsignal.c.orig	Tue May  8 18:17:48 2001
+++ libgu/gu_strsignal.c
@@ -22,6 +22,9 @@
 #include "before_system.h"
 #include <string.h>
 #include <signal.h>
+#ifdef HAVE_STRSIGNAL
+#include <unistd.h>
+#endif
 #include "gu.h"
 #undef strsignal
 
