From 70a62b2079168ef51369c0f7a7f3b95555c18c0f Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Wed, 16 Mar 2011 18:06:14 -0400
Subject: Fix -? option handling.

---
 dimension/main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'dimension')

diff --git a/dimension/main.c b/dimension/main.c
index ee2e680..6e40c08 100644
--- a/dimension/main.c
+++ b/dimension/main.c
@@ -82,7 +82,12 @@ main(int argc, char **argv)
 
     case '?':
       print_usage(stdout, argv[0]);
-      return EXIT_SUCCESS;
+      /* '?' is returned as an error code too */
+      if (optopt == 0) {
+        return EXIT_SUCCESS;
+      } else {
+        return EXIT_FAILURE;
+      }
     case DMNSN_OPT_VERSION:
       print_version(stdout);
       return EXIT_SUCCESS;
-- 
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