From e8deb2582e54d8398bfce7dab023c81d019b1325 Mon Sep 17 00:00:00 2001
From: Sebastien Blaise <sebastien.blaise@uclouvain.be>
Date: Wed, 2 Sep 2015 14:39:13 +0000
Subject: [PATCH] Try to fix the graphics loading when opengl is not found

---
 CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2b70fa85e1..80609eed99 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -640,12 +640,12 @@ if(HAVE_FLTK OR HAVE_QT OR ENABLE_GRAPHICS)
   endif(ENABLE_OSMESA)
 
   find_package(OpenGL REQUIRED)
-  if(OPENGL_GLU_FOUND)
+  if(OPENGL_GLU_FOUND AND OPENGL_FOUND)
     add_subdirectory(Graphics)
     set_config_option(HAVE_OPENGL "OpenGL")
-  else(OPENGL_GLU_FOUND)
+  else(OPENGL_GLU_FOUND AND  OPENGL_FOUND)
     message(SEND_ERROR "Could not find GLU: disabling OpenGL support")
-  endif(OPENGL_GLU_FOUND)
+  endif(OPENGL_GLU_FOUND AND  OPENGL_FOUND)
 endif(HAVE_FLTK OR HAVE_QT OR ENABLE_GRAPHICS)
 
 if(HAVE_MESH OR HAVE_PLUGINS)
-- 
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