dnl Process this file with autoconf to produce a configure script.
+dnl This file is part of secnet.
+dnl See README for full list of copyright holders.
+dnl
+dnl secnet is free software; you can redistribute it and/or modify it
+dnl under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version d of the License, or
+dnl (at your option) any later version.
+dnl
+dnl secnet is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl version 3 along with secnet; if not, see
+dnl https://www.gnu.org/licenses/gpl.html.
+
sinclude(ac_prog_cc_no_writeable_strings.m4)
AC_INIT(secnet,0.1.18+,secnet@chiark.greenend.org.uk)
AC_CHECK_HEADERS([stdint.h inttypes.h])
AC_CHECK_HEADERS([net/if.h net/route.h])
AC_CHECK_HEADERS([sys/socket.h])
-AC_CHECK_HEADERS([linux/if.h], [], [],
+AC_CHECK_HEADERS([linux/if_tun.h], [], [],
[#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
if test "$ac_cv_lib_fl_yywrap" != yes; then
AC_MSG_ERROR([A compatible libfl is required])
fi
-AC_CHECK_LIB(nsl,inet_ntoa)
+SECNET_C_GETFUNC(inet_ntoa,nsl)
AC_CHECK_LIB(socket,socket)
-AC_CHECK_LIB(resolv,inet_aton)
+SECNET_C_GETFUNC(inet_aton,resolv)
AC_CHECK_LIB(adns,adns_init)
REQUIRE_HEADER([adns.h])
+AC_MSG_NOTICE([Checking requirements for IPv6 support...])
+enable_ipv6=true
+m4_define(NO_IPV6,[enable_ipv6=false])
+AC_CHECK_DECL(AF_INET6, [],[NO_IPV6],[#include <netinet/in.h>])
+AC_CHECK_FUNC(adns_addr2text, [],[NO_IPV6])
+if $enable_ipv6; then
+ AC_MSG_NOTICE([Enabling IPv6 support])
+ AC_DEFINE(CONFIG_IPV6, 1,
+ [Define to 1 to use IPv6 support in system and adns])
+else
+ AC_MSG_WARN([Disabling IPv6 support])
+fi
+
AC_OUTPUT(Makefile,echo timestamp >stamp-h)
AH_TOP([