dnl Process this file with autoconf to produce a configure script.
dnl
-dnl $Id: configure.in,v 1.150 2011/04/16 17:28:15 fabiankeil Exp $
+dnl $Id: configure.in,v 1.151 2011/04/19 11:42:12 fabiankeil Exp $
dnl
dnl Written by and Copyright (C) 2001-2010 the
dnl Privoxy team. http://www.privoxy.org/
dnl AutoConf Initialization
dnl =================================================================
-AC_REVISION($Revision: 1.150 $)
+AC_REVISION($Revision: 1.151 $)
AC_INIT(jcc.c)
if test ! -f config.h.in; then
AC_CHECK_FUNCS([access atexit getcwd gethostbyaddr gethostbyaddr_r gethostbyname gethostbyname_r gettimeofday inet_ntoa localtime_r memchr memmove memset poll putenv random regcomp select setlocale snprintf socket strchr strdup strerror strftime strlcat strlcpy strptime strstr strtoul timegm tzset])
dnl Checks for RFC 2553 resolver and socket functions
-if test $target_type = mingw; then
+AC_ARG_ENABLE(ipv6-support,
+[ --disable-ipv6-support Disable IPv6 support and other RFC-2554-related improvements],
+[if test $enableval = yes; then
+ enable_ipv6_support=yes
+fi], enable_ipv6_support=yes)
+
+if test $enable_ipv6_support != yes; then
+ AC_MSG_WARN([Skipping checks for IPv6 support and other RFC-2554-related improvements.
+ Due to lock contention, this may result in slower DNS resolution for IPv4 setups, too.])
+elif test $target_type = mingw; then
AC_CHECK_LIB(ws2_32, main)
AC_MSG_CHECKING(getaddrinfo in ws2_32)