diff -ru glm-0.9.3.2-orig/glm/gtx/integer.inl glm-0.9.3.2/glm/gtx/integer.inl
--- glm-0.9.3.2-orig/glm/gtx/integer.inl	2012-09-02 21:53:24.298350117 +0300
+++ glm-0.9.3.2/glm/gtx/integer.inl	2012-09-02 21:54:42.435203223 +0300
@@ -60,10 +60,8 @@
 		template <typename T>
 		GLM_FUNC_QUALIFIER T operator() (T const & Value) const
 		{
-#if(GLM_COMPILER & GLM_COMPILER_VC)
+#if(GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_GCC))
 			return Value <= T(1) ? T(0) : T(32) - nlz(Value - T(1));
-#elif(GLM_COMPILER & GLM_COMPILER_GCC)
-			return Value <= T(1) ? T(0) : nlz(Value - T(1)) + 1;
 #else
 			return T(32) - nlz(Value - T(1));
 #endif