Cast away warning in gcc

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6231 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CGLXManager.cpp

@@ -280,7 +280,7 @@ bool CGLXManager::initialize(const SIrrlichtCreationParameters& params, const SE
 
 void CGLXManager::terminate()
 {
-	memset(&CurrentContext, 0, sizeof(CurrentContext));
+	memset((void*)&CurrentContext, 0, sizeof(CurrentContext));
 }
 
 bool CGLXManager::generateSurface()