From 5bfa8db9a39295902a11bbdfb2ac968189a73c98 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 9 Jul 2008 11:18:52 +0000
Subject: * configure.in (rb_cv_va_args_macro): check for __VA_ARGS__.

* thread.c (thread_debug): show source name and line if possible.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@17971 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.in | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 42721bb7e..942a79096 100644
--- a/configure.in
+++ b/configure.in
@@ -395,6 +395,15 @@ if test "$rb_cv_stdarg" = yes; then
   AC_DEFINE(HAVE_STDARG_PROTOTYPES)
 fi
 
+AC_CACHE_CHECK(for variable length macro, rb_cv_va_args_macro,
+  [AC_TRY_COMPILE([@%:@define FOO(a, ...) foo(a, @%:@@%:@__VA_ARGS__)],
+  [FOO(1);FOO(1,2);FOO(1,2,3);],
+  rb_cv_va_args_macro=yes,
+  rb_cv_va_args_macro=no)])
+if test "$rb_cv_va_args_macro" = yes; then
+  AC_DEFINE(HAVE_VA_ARGS_MACRO)
+fi
+
 AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
 m4_ifval([$2], dnl
   [AS_VAR_PUSHDEF([attrib],[$2])], dnl
-- 
cgit