fix Mac OSX version of preparation of AllBullet2Demo collection

Demos3/AllBullet2Demos/main.cpp

@@ -66,7 +66,7 @@ int main(int argc, char* argv[])
 	GLint err = glGetError();
     assert(err==GL_NO_ERROR);
 	
-	sth_stash* fontstash=0;
+	sth_stash* fontstash=app->getFontStash();
 	gui = new GwenUserInterface;
 	gui->init(width,height,fontstash,app->m_window->getRetinaScale());
 

btgui/OpenGLWindow/SimpleOpenGL3App.cpp

@@ -132,7 +132,10 @@ SimpleOpenGL3App::SimpleOpenGL3App(	const char* title, int width,int height)
 }
 
 
-
+struct sth_stash* SimpleOpenGL3App::getFontStash()
+{
+	return m_data->m_fontStash;
+}
 
 
 

btgui/OpenGLWindow/SimpleOpenGL3App.h

@@ -21,6 +21,7 @@ struct SimpleOpenGL3App
 	void drawGrid(int gridSize=10, float yOffset=0.001);
 	void swapBuffer();
 	void drawText( const char* txt, int posX, int posY);
+	struct sth_stash* getFontStash();
 
 };