Ensure we can query all GL functions in all platform plugins

This is required to simplify our code in the opengl classes
and makes it possible to remove OS dependent code paths in
Qt Gui.

Change-Id: Ice09440840c86b2d6ac8d3955d273846695338d4
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/plugins/platforms/directfb/qdirectfbglcontext.cpp b/src/plugins/platforms/directfb/qdirectfbglcontext.cpp
index e1607b131a..847435d96e 100644
--- a/src/plugins/platforms/directfb/qdirectfbglcontext.cpp
+++ b/src/plugins/platforms/directfb/qdirectfbglcontext.cpp
@@ -40,6 +40,7 @@
 #include "qdirectfbglcontext.h"
 
 #include <directfbgl.h>
+#include <dlfcn.h>
 
 #include <QDebug>
 
@@ -80,13 +81,13 @@ void QDirectFbGLContext::doneCurrent()
     m_dfbGlContext->Unlock(m_dfbGlContext);
 }
 
-void *QDirectFbGLContext::getProcAddress(const char *procName)
+QFunctionPointer QDirectFbGLContext::getProcAddress(const char *procName)
 {
     void *proc;
     DFBResult result = m_dfbGlContext->GetProcAddress(m_dfbGlContext, procName, &proc);
     if (result == DFB_OK)
-        return proc;
-    return 0;
+        return (QFunctionPointer) proc;
+    return dlsym(RTLD_DEFAULT, procName);
 }
 
 void QDirectFbGLContext::swapBuffers()