From 16da43922493ea2693ac5cf75d190cd7a7da1b9a Mon Sep 17 00:00:00 2001
From: Charles Otto <ottochar@gmail.com>
Date: Mon, 31 Mar 2014 12:54:20 -0400
Subject: [PATCH] Add a qFatal when initializing GUI transforms when Globals->useGui is not set.

---
 openbr/plugins/gui.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/openbr/plugins/gui.cpp b/openbr/plugins/gui.cpp
index 557ac9c..9ccd6d4 100644
--- a/openbr/plugins/gui.cpp
+++ b/openbr/plugins/gui.cpp
@@ -592,8 +592,9 @@ public:
     template<typename WindowType>
     void initActual()
     {
-        if (!Globals->useGui)
-            return;
+        if (!Globals->useGui) {
+            qFatal("GUI transform %s created without enabling GUI support.\nRun \"br -gui ...\" to enable GUI support from the command line, or set\nGlobals->useGui to true.", this->metaObject()->className());
+        }
 
         if (displayBuffer)
             delete displayBuffer;
--
libgit2 0.21.4