From 4a44905f48ed568fd283294aff28eb3f27618162 Mon Sep 17 00:00:00 2001
From: Alexander Bock <alexander.bock@liu.se>
Date: Wed, 21 Jan 2015 00:41:18 +0100
Subject: [PATCH] Add additional check for GUI shader compilation

---
 ext/ghoul       | 2 +-
 src/gui/gui.cpp | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/ext/ghoul b/ext/ghoul
index 8e787753ab..627e9a4371 160000
--- a/ext/ghoul
+++ b/ext/ghoul
@@ -1 +1 @@
-Subproject commit 8e787753ab54f60c9a74a1ded9ed9191f4b42502
+Subproject commit 627e9a4371d3b9b0159e09fe95eba194820cd5f8
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 70ac8d5d55..153a7bbdac 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -301,6 +301,10 @@ void GUI::initialize() {
 void GUI::initializeGL() {
 	_program = ghoul::opengl::ProgramObject::Build("GUI",
 		"${SHADERS}/gui_vs.glsl", "${SHADERS}/gui_fs.glsl");
+	if (!_program) {
+		LERROR("Could not load program object for GUI");
+		return;
+	}
 		
     positionLocation = glGetAttribLocation(*_program, "in_position");
     uvLocation = glGetAttribLocation(*_program, "in_uv");