From: Nathan Smith <nathasm@gmail.com>
Date: Mon, 17 Dec 2012 19:50:05 +0000 (-0500)
Subject: Add optional description which complains on newer versions of autoconf
X-Git-Tag: v0.22.0~1085
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=a6f8a89d7ae9db45d96a124f9f9c0d1def5f0a04;p=folly.git

Add optional description which complains on newer versions of autoconf

Summary: https://github.com/facebook/folly/pull/22

Test Plan: none

Reviewed By: andrewjcg@fb.com

FB internal diff: D683791
---

diff --git a/folly/configure.ac b/folly/configure.ac
index 6d564f9f..13efcbe2 100644
--- a/folly/configure.ac
+++ b/folly/configure.ac
@@ -52,8 +52,8 @@ AC_TYPE_SIZE_T
 AC_HEADER_TIME
 AC_C_VOLATILE
 AC_CHECK_TYPE([__int128],
-  [AC_DEFINE([HAVE_INT128_T], [1])],
-  [AC_DEFINE([HAVE_INT128_T], [0])])
+  [AC_DEFINE([HAVE_INT128_T], [1], [Define if __int128 exists])],
+  [AC_DEFINE([HAVE_INT128_T], [0], [Define if __int128 does not exist])])
 AC_CHECK_TYPES([ptrdiff_t])
 
 # Checks for library functions.