From c3f8c067954023ca268a9c8d83b379f267c4f19d Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 19 Dec 2007 04:57:46 +0000
Subject: [PATCH] * configure.in (TIMEZONE_VOID): check whether timezone
 requires zero   arguments.  [ruby-dev:32631]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog    |  5 +++++
 configure.in | 11 +++++++++++
 2 files changed, 16 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 7114ed5aef..b60f041a9f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Dec 19 13:57:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (TIMEZONE_VOID): check whether timezone requires zero
+	  arguments.  [ruby-dev:32631]
+
 Wed Dec 19 13:22:14 2007  NARUSE, Yui <naruse@ruby-lang.org>
 
 	* ext/nkf/nkf.c (NKF::_ENCODING): removed.
diff --git a/configure.in b/configure.in
index 2ac140e334..1fd0097303 100644
--- a/configure.in
+++ b/configure.in
@@ -657,6 +657,17 @@ RUBY_CHECK_VARTYPE(timezone, [#include <time.h>], [long int])
 RUBY_CHECK_VARTYPE(altzone, [#include <time.h>], [long int])
 if test "$rb_cv_var_timezone" = no; then
   AC_CHECK_FUNCS(timezone)
+  if test "$ ac_cv_func_timezone" = yes; then
+    AC_CACHE_CHECK([whether timezone requires zero arguments], rb_cv_func_timezone_void,
+      [AC_TRY_COMPILE([#include <time.h>],
+	[(void)timezone(0, 0);],
+	[rb_cv_func_timezone_void=no],
+	[rb_cv_func_timezone_void=yes])]
+    )
+    if test $rb_cv_func_timezone_void = yes; then
+      AC_DEFINE(TIMEZONE_VOID)
+    fi
+  fi
 fi
 
 AC_CACHE_CHECK(for negative time_t for gmtime(3), rb_cv_negative_time_t,