Blob Blame Raw
diff -up gv-3.7.4/src/zoom.c.bug1071238 gv-3.7.4/src/zoom.c
--- gv-3.7.4/src/zoom.c.bug1071238	2012-03-29 10:03:50.000000000 -0600
+++ gv-3.7.4/src/zoom.c	2014-02-28 09:17:20.522332906 -0700
@@ -109,7 +109,7 @@ zoom_createZoom(Widget w _GL_UNUSED, XtP
        return;
     }
 
-    if (strcmp(gv_filename, "-")) {
+    if (gv_filename != NULL && strcmp(gv_filename, "-")) {
        stat(gv_filename, &sbuf);
        if (mtime != sbuf.st_mtime) {
 	  INFMESSAGE1(file has changed) ENDMESSAGE1(zoom_createZoom)return;