126 lines
2.4 KiB
Plaintext
126 lines
2.4 KiB
Plaintext
dnl $Id: krb-ipv6.m4,v 1.10 2001/03/26 03:28:03 assar Exp $
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dnl
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dnl test for IPv6
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dnl
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AC_DEFUN(AC_KRB_IPV6, [
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AC_ARG_WITH(ipv6,
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[ --without-ipv6 do not enable IPv6 support],[
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if test "$withval" = "no"; then
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ac_cv_lib_ipv6=no
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fi])
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save_CFLAGS="${CFLAGS}"
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AC_CACHE_VAL(ac_cv_lib_ipv6,
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[dnl check for different v6 implementations (by itojun)
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v6type=unknown
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v6lib=none
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AC_MSG_CHECKING([ipv6 stack type])
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for i in v6d toshiba kame inria zeta linux; do
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case $i in
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v6d)
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AC_EGREP_CPP(yes, [
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#include </usr/local/v6/include/sys/types.h>
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#ifdef __V6D__
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yes
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#endif],
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[v6type=$i; v6lib=v6;
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v6libdir=/usr/local/v6/lib;
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CFLAGS="-I/usr/local/v6/include $CFLAGS"])
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;;
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toshiba)
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AC_EGREP_CPP(yes, [
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#include <sys/param.h>
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#ifdef _TOSHIBA_INET6
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yes
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#endif],
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[v6type=$i; v6lib=inet6;
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v6libdir=/usr/local/v6/lib;
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CFLAGS="-DINET6 $CFLAGS"])
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;;
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kame)
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AC_EGREP_CPP(yes, [
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#include <netinet/in.h>
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#ifdef __KAME__
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yes
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#endif],
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[v6type=$i; v6lib=inet6;
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v6libdir=/usr/local/v6/lib;
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CFLAGS="-DINET6 $CFLAGS"])
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;;
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inria)
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AC_EGREP_CPP(yes, [
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#include <netinet/in.h>
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#ifdef IPV6_INRIA_VERSION
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yes
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#endif],
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[v6type=$i; CFLAGS="-DINET6 $CFLAGS"])
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;;
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zeta)
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AC_EGREP_CPP(yes, [
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#include <sys/param.h>
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#ifdef _ZETA_MINAMI_INET6
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yes
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#endif],
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[v6type=$i; v6lib=inet6;
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v6libdir=/usr/local/v6/lib;
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CFLAGS="-DINET6 $CFLAGS"])
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;;
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linux)
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if test -d /usr/inet6; then
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v6type=$i
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v6lib=inet6
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v6libdir=/usr/inet6
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CFLAGS="-DINET6 $CFLAGS"
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fi
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;;
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esac
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if test "$v6type" != "unknown"; then
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break
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fi
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done
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AC_MSG_RESULT($v6type)
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if test "$v6lib" != "none"; then
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for dir in $v6libdir /usr/local/v6/lib /usr/local/lib; do
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if test -d $dir -a -f $dir/lib$v6lib.a; then
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LIBS="-L$dir -l$v6lib $LIBS"
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break
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fi
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done
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fi
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AC_TRY_LINK([
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_NETINET_IN6_H
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#include <netinet/in6.h>
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#endif
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],
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[
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struct sockaddr_in6 sin6;
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int s;
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s = socket(AF_INET6, SOCK_DGRAM, 0);
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sin6.sin6_family = AF_INET6;
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sin6.sin6_port = htons(17);
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sin6.sin6_addr = in6addr_any;
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bind(s, (struct sockaddr *)&sin6, sizeof(sin6));
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],
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ac_cv_lib_ipv6=yes,
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ac_cv_lib_ipv6=no)])
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AC_MSG_CHECKING(for IPv6)
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AC_MSG_RESULT($ac_cv_lib_ipv6)
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if test "$ac_cv_lib_ipv6" = yes; then
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AC_DEFINE(HAVE_IPV6, 1, [Define if you have IPv6.])
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else
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CFLAGS="${save_CFLAGS}"
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fi
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])
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