Fastcall calling convention is not comaptible with variable number of arguments

Author: dstogov

Zend/zend_smart_str.c

@@ -114,7 +114,7 @@ ZEND_API void ZEND_FASTCALL smart_str_append_escaped(smart_str *str, const char
 	}
 }
 
-ZEND_API void ZEND_FASTCALL smart_str_append_printf(smart_str *dest, const char *format, ...) {
+ZEND_API void smart_str_append_printf(smart_str *dest, const char *format, ...) {
 	va_list arg;
 	va_start(arg, format);
 	zend_printf_to_smart_str(dest, format, arg);

Zend/zend_smart_str.h

@@ -49,7 +49,7 @@ BEGIN_EXTERN_C()
 ZEND_API void ZEND_FASTCALL smart_str_erealloc(smart_str *str, size_t len);
 ZEND_API void ZEND_FASTCALL smart_str_realloc(smart_str *str, size_t len);
 ZEND_API void ZEND_FASTCALL smart_str_append_escaped(smart_str *str, const char *s, size_t l);
-ZEND_API void ZEND_FASTCALL smart_str_append_printf(smart_str *dest, const char *format, ...)
+ZEND_API void smart_str_append_printf(smart_str *dest, const char *format, ...)
 	ZEND_ATTRIBUTE_FORMAT(printf, 2, 3);
 
 END_EXTERN_C()