From ed28d151a38feefb9511aebec3216b1f190485f9 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 31 Jan 2017 02:01:31 +0000
Subject: limits.c.tmpl: fallback ULLONG_MAX

* template/limits.c.tmpl (ULLONG_MAX): add a fallback definition.
  On old CentOS lacks ULLONG_MAX.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 template/limits.c.tmpl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/template/limits.c.tmpl b/template/limits.c.tmpl
index fc95e0b307..f4ecaf62f9 100644
--- a/template/limits.c.tmpl
+++ b/template/limits.c.tmpl
@@ -58,6 +58,9 @@ Init_limits(void)
     rb_define_const(rb_define_module("RbConfig"), "Limits", h);
 
 #ifdef HAVE_LONG_LONG
+#ifndef ULLONG_MAX
+#define ULLONG_MAX ((unsigned LONG_LONG)LLONG_MAX*2+1)
+#endif
 #define MAX2NUM(name) ULL2NUM(name ## _MAX)
 #define MIN2NUM(name)  LL2NUM(name ## _MIN)
 #else
-- 
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