add pragma

diff --git a/Zend/zend_multiply.h b/Zend/zend_multiply.h
index 38db1ad1b63e7063ffc3360bcd934194c0b8d356..75769db4a1f47eebe5e7b2e1502871e68dd69ce8 100644 (file)
--- a/Zend/zend_multiply.h
+++ b/Zend/zend_multiply.h
@@ -84,6 +84,7 @@
 #elif defined(ZEND_WIN32)
 
 # ifdef _M_X64
+#  pragma intrinsic(_mul128)
 #  define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do {       \
        __int64 __high; \
        __int64 __low = _mul128((a), (b), &__high); \