--- windows/Execfreebsd.c.orig	Tue Dec 28 19:25:11 1999
+++ windows/Execfreebsd.c	Tue Dec 28 19:30:39 1999
@@ -171,7 +171,7 @@
 	int rc;
     sact.sa_handler  = TWIN_GPFSigHandler;
     sact.sa_flags    = SA_RESTART;
-    sact.sa_mask     = 0;
+    sigemptyset(&sact.sa_mask);
     rc =  sigaction(sig, &sact, NULL);
     return rc;
 }