if (!suffix2) suffix2 = "";
/* open file for vcg graph */
- fname = malloc (len * 2 + strlen(suffix1) + strlen(suffix2) + 5);
+ fname = xmalloc (len * 2 + strlen(suffix1) + strlen(suffix2) + 5);
/* strncpy (fname, nm, len); */ /* copy the filename */
j = 0;