Fixed bug #28508 (Do not make hypot() available if not supported by libc).

ext/standard/basic_functions.c

@@ -401,7 +401,9 @@ function_entry basic_functions[] = {
 	PHP_FE(log,																NULL)
 	PHP_FE(log10,															NULL)
 	PHP_FE(sqrt,															NULL)
+#ifdef HAVE_HYPOT
 	PHP_FE(hypot,															NULL)
+#endif	
 	PHP_FE(deg2rad,															NULL)
 	PHP_FE(rad2deg,															NULL)
 	PHP_FE(bindec,															NULL)

ext/standard/math.c

@@ -622,9 +622,9 @@ PHP_FUNCTION(sqrt)
    disappear in the next version of PHP!
 */
 
+#ifdef HAVE_HYPOT
 PHP_FUNCTION(hypot)
 {
-#ifdef HAVE_HYPOT
 	zval **num1, **num2;
 
 	if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &num1, &num2) == FAILURE) {
@@ -634,8 +634,8 @@ PHP_FUNCTION(hypot)
 	convert_to_double_ex(num2);
 	Z_DVAL_P(return_value) = hypot(Z_DVAL_PP(num1), Z_DVAL_PP(num2));
 	Z_TYPE_P(return_value) = IS_DOUBLE;
-#endif
 }
+#endif
 
 /* }}} */
 

ext/standard/php_math.h

@@ -66,7 +66,9 @@ PHP_FUNCTION(rad2deg);
    WARNING: these functions are expermental: they could change their names or 
    disappear in the next version of PHP!
    */
+#ifdef HAVE_HYPOT
 PHP_FUNCTION(hypot);
+#endif
 PHP_FUNCTION(expm1);
 PHP_FUNCTION(log1p);