--- main.h	Wed Jun  3 13:20:28 1998
+++ /home/andy/tmp/wrk/main.h	Wed Oct 28 22:12:08 1998
@@ -37,7 +37,11 @@
 
 #define CALL_GRAPH_FILE     "call.grp"
 #define RECURSIVE_PROC_FILE "recur.prc"
+#ifdef PREFIX
+#define CONFIG_FILE         PREFIX "/etc/ptoc.cfg"
+#else
 #define CONFIG_FILE         "ptoc.cfg"
+#endif
 
 extern bool  use_call_graph;
 extern bool  pio_init;