From 1e63aafe773b3cc12e0be4fb737a423b4a1338e6 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 31 Oct 2016 16:31:12 +0000
Subject: configure.in: no round in x64-mingw

* configure.in (ac_cv_func_round): round(3) in x86_64-w64-mingw32
  is not accurate in an edge case.  [ruby-core:77794] [Bug #12878]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56534 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    | 5 +++++
 configure.in | 5 ++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 9b65e6bad7..22c1d17adc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Nov  1 01:31:09 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ac_cv_func_round): round(3) in x86_64-w64-mingw32
+	  is not accurate in an edge case.  [ruby-core:77794] [Bug #12878]
+
 Mon Oct 31 17:36:04 2016  Code Ahss  <aycabta@gmail.com>
 
 	* test/test_forwardable.rb (TestForwardable#test_on_private_method):
diff --git a/configure.in b/configure.in
index 108c01a699..8e61066ac6 100644
--- a/configure.in
+++ b/configure.in
@@ -1236,7 +1236,10 @@ main()
                 ac_cv_func_clock_gettime=yes
                 ac_cv_func_clock_getres=yes
 		ac_cv_func_malloc_usable_size=no
-		{ test "$target_cpu" = x64 && ac_cv_func___builtin_setjmp=no; }
+		AS_IF([test "$target_cpu" = x64], [
+		    ac_cv_func___builtin_setjmp=no
+		    ac_cv_func_round=no
+		])
 		AC_CHECK_TYPE([NET_LUID], [], [],
 			      [@%:@include <winsock2.h>
 			      @%:@include <iphlpapi.h>])
-- 
cgit v1.2.3