 
 #endif
 
-#ifdef IS_INF_USED
+#if defined(IS_INF_USED)
 
 bool isinf(highp float x) {
 	return (2 * x == x) && (x != 0);


#ifndef USE_GLES_OVER_GL

#ifdef TRANSPOSE_USED

highp mat2 transpose(highp mat2 m) {
	return mat2(


#endif

#if defined(ROUND_EVEN_USED)

highp float roundEven(highp float x) {
	highp float t = x + 0.5;
