From 5172e595c90357ff0d66dbda52e58baeaa394336 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 30 Jul 2003 01:31:43 +0000
Subject: * ext/iconv/iconv.c (iconv_convert): append unchanged portion   after
 overflow.  [ruby-dev:21006]

* ext/iconv/extconf.rb: check if iconv() 2nd argument is const.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4223 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/iconv/extconf.rb | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'ext/iconv/extconf.rb')

diff --git a/ext/iconv/extconf.rb b/ext/iconv/extconf.rb
index b81b7379fc..7176fa45e3 100644
--- a/ext/iconv/extconf.rb
+++ b/ext/iconv/extconf.rb
@@ -6,6 +6,20 @@ conf = File.exist?(File.join($srcdir, "config.charset"))
 conf = with_config("config-charset", enable_config("config-charset", conf))
 
 if have_header("iconv.h")
+  if !try_compile("", "-Werror") or checking_for("iconv() 2nd argument is const") do
+      !try_compile('
+#include <iconv.h>
+size_t
+test(iconv_t cd, char **inptr, size_t *inlen, char **outptr, size_t *outlen)
+{
+    return iconv(cd, inptr, inlen, outptr, outlen);
+}
+', "-Werror")
+    end
+    $defs.push('-DICONV_INPTR_CAST=""')
+  else
+    $defs.push('-DICONV_INPTR_CAST="(char **)"')
+  end
   have_library("iconv")
   if conf
     prefix = '$(srcdir)'
-- 
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