diff -ur sbin/savecore/savecore.c sbin-zlib/savecore/savecore.c
--- sbin/savecore/savecore.c	2005-02-26 01:21:50 +0000
+++ sbin-zlib/savecore/savecore.c	2005-05-06 12:00:06 +0000
@@ -95,7 +95,7 @@
 static int checkfor, compress, clear, force, keep, verbose;	/* flags */
 static int nfound, nsaved, nerr;			/* statistics */
 
-extern FILE *zopen(const char *, const char *);
+extern FILE *gzopen(const char *, const char *);
 
 static void
 printheader(FILE *f, const struct kerneldumpheader *h, const char *device,
@@ -387,7 +387,7 @@
 	oumask = umask(S_IRWXG|S_IRWXO); /* Restrict access to the core file.*/
 	if (compress) {
 		sprintf(buf, "vmcore.%d.gz", bounds);
-		fp = zopen(buf, "w");
+		fp = gzopen(buf, "w");
 	} else {
 		sprintf(buf, "vmcore.%d", bounds);
 		fp = fopen(buf, "w");