From 12a845ba9ee7051592f62e9c4f69735668907d10 Mon Sep 17 00:00:00 2001
From: "Clifford T. Matthews" <ctm@Fixer-F12-i686.devctm.com>
Date: Sat, 5 Dec 2009 08:44:07 -0700
Subject: [PATCH] Fixed bug that was causing Executor to crash on systems where
 argv[0] isn't guaranteed to have a slash in it (e.g., Fedora 12).

---
 src/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index 3d58ef3..d76f41b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -722,10 +722,12 @@ A1(PRIVATE, void, setstartdir, char *, argv0)
     misc_self_examination (lookhere);
 #endif
     suffix = rindex(lookhere, '/');
-    *suffix = 0;
+    if (suffix)
+      *suffix = 0;
     getcwd(savedir, sizeof savedir);
     Uchdir(lookhere);
-    *suffix = '/';
+    if (suffix)
+      *suffix = '/';
     getcwd(ROMlib_startdir, sizeof ROMlib_startdir);
     Uchdir(savedir);
     ROMlib_startdirlen = strlen(ROMlib_startdir) + 1;