configure.in

dnl $Id$

define([extraquote],[[[$1]]])
define([defnsubst],[define([$1],patsubst(extraquote(defn([$1])),[$2],[$3])))])
defnsubst([AC_INIT_PARSE_ARGS], ['${prefix}/var'], ['/var'])
defnsubst([AC_INIT_PARSE_ARGS], [PREFIX/var], [/var])

AC_INIT(u6rd.8.in)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL

dnl Checks for libraries.

dnl Checks for header files.
AC_CHECK_HEADERS(net/if_tun.h net/if_utun.h net/tun/if_tun.h linux/if_tun.h,
	break, ac_hdr=)
case $ac_hdr in
net/if_tun.h|net/tun/if_tun.h) P_SRCS="$P_SRCS tun_bsd.c" ;;
net/if_utun.h) P_SRCS="$P_SRCS tun_darwin.c" ;;
linux/if_tun.h) P_SRCS="$P_SRCS tun_linux.c" ;;
*) AC_MSG_ERROR([No supported tunneling device.]) ;;
esac

dnl Checks for typedefs, structures, and compiler characteristics.

dnl Checks for library functions.
dnl dnl cap_rights_limit() in FreeBSD 10 replaced cap_new() in FreeBSD 9.
dnl AC_ARG_ENABLE(capsicum,
dnl  [  --enable-capsicum       support Capsicum capability mode],
dnl  [],
dnl  [AC_CHECK_HEADER(sys/capability.h, AC_CHECK_FUNC(cap_rights_limit,
dnl    enable_capsicum=yes))])
dnl if test x"$enable_capsicum" = xyes; then
dnl        AC_DEFINE(ENABLE_CAPSICUM)
dnl fi
AC_REPLACE_FUNCS(getprogname strlcpy)

dnl Package options
if test x"$GCC" = xyes; then
	CFLAGS="$CFLAGS -Wall -W"
fi

AC_SUBST(P_SRCS)
AC_OUTPUT(Makefile)