diff -u gstrfuncs.org.c gstrfuncs.c
--- gstrfuncs.org.c	Mon Apr 22 19:03:42 2002
+++ gstrfuncs.c	Mon Apr 22 19:03:42 2002
@@ -702,7 +702,11 @@
   char *msg;
 
 #ifdef HAVE_STRSIGNAL
+#ifdef __CYGNUS__
+  const char *_EXFUN(strsignal, (int __signo));
+#else
   extern char *strsignal (int sig);
+#endif
   return strsignal (signum);
 #elif NO_SYS_SIGLIST
   switch (signum)