diff --git a/cddl/contrib/opensolaris/tools/ctf/common/utils.c b/cddl/contrib/opensolaris/tools/ctf/common/utils.c
index b9db1a870165..f74eb8de40fa 100644
--- a/cddl/contrib/opensolaris/tools/ctf/common/utils.c
+++ b/cddl/contrib/opensolaris/tools/ctf/common/utils.c
@@ -24,8 +24,7 @@
  * All rights reserved.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
+#include <err.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdarg.h>
@@ -60,31 +59,6 @@ getpname(void)
 	return (pname);
 }
 
-void
-vwarn(const char *format, va_list alist)
-{
-	int err = errno;
-
-	if (pname != NULL)
-		(void) fprintf(stderr, "%s: ", pname);
-
-	(void) vfprintf(stderr, format, alist);
-
-	if (strchr(format, '\n') == NULL)
-		(void) fprintf(stderr, ": %s\n", strerror(err));
-}
-
-/*PRINTFLIKE1*/
-void
-warn(const char *format, ...)
-{
-	va_list alist;
-
-	va_start(alist, format);
-	vwarn(format, alist);
-	va_end(alist);
-}
-
 void
 vdie(const char *format, va_list alist)
 {
diff --git a/cddl/contrib/opensolaris/tools/ctf/common/utils.h b/cddl/contrib/opensolaris/tools/ctf/common/utils.h
index 9b07361a53ab..99378bb4f251 100644
--- a/cddl/contrib/opensolaris/tools/ctf/common/utils.h
+++ b/cddl/contrib/opensolaris/tools/ctf/common/utils.h
@@ -39,8 +39,6 @@ extern "C" {
 #define	E_ERROR		1		/* Exit status for error */
 #define	E_USAGE		2		/* Exit status for usage error */
 
-extern void vwarn(const char *, va_list);
-extern void warn(const char *, ...);
 extern void vdie(const char  *, va_list);
 extern void die(const char *, ...);
 
diff --git a/cddl/contrib/opensolaris/tools/ctf/dump/dump.c b/cddl/contrib/opensolaris/tools/ctf/dump/dump.c
index 6da2c2cf8b26..06c00a7b0e7f 100644
--- a/cddl/contrib/opensolaris/tools/ctf/dump/dump.c
+++ b/cddl/contrib/opensolaris/tools/ctf/dump/dump.c
@@ -24,13 +24,12 @@
  * Use is subject to license terms.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 #include <sys/types.h>
 #include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
 
+#include <err.h>
 #include <strings.h>
 #include <unistd.h>
 #include <stdlib.h>