1dnl * 2dnl * Copyright (c) 2001 Motoyuki Kasahara 3dnl * 4dnl * Redistribution and use in source and binary forms, with or without 5dnl * modification, are permitted provided that the following conditions 6dnl * are met: 7dnl * 1. Redistributions of source code must retain the above copyright 8dnl * notice, this list of conditions and the following disclaimer. 9dnl * 2. Redistributions in binary form must reproduce the above copyright 10dnl * notice, this list of conditions and the following disclaimer in the 11dnl * documentation and/or other materials provided with the distribution. 12dnl * 3. Neither the name of the project nor the names of its contributors 13dnl * may be used to endorse or promote products derived from this software 14dnl * without specific prior written permission. 15dnl * 16dnl * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17dnl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18dnl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19dnl * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORSBE 20dnl * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21dnl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22dnl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23dnl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24dnl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25dnl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26dnl * THE POSSIBILITY OF SUCH DAMAGE. 27dnl * 28 29dnl * 30dnl * Check for struct in6_addr 31dnl * 32AC_DEFUN([AC_STRUCT_IN6_ADDR], 33[AC_CACHE_CHECK(for struct in6_addr, ac_cv_struct_in6_addr, 34[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 35#include <sys/types.h> 36#include <sys/socket.h> 37#include <netinet/in.h>]], [[ 38struct in6_addr address; 39]])],[ac_cv_struct_in6_addr=yes],[ac_cv_struct_in6_addr=no])]) 40if test "$ac_cv_struct_in6_addr" = yes; then 41 AC_DEFINE(HAVE_STRUCT_IN6_ADDR, 1, 42[Define to 1 if <netinet/in.h> defines `struct in6_addr']) 43fi]) 44 45dnl * 46dnl * Check for in6addr_any. 47dnl * 48AC_DEFUN([AC_DECL_IN6ADDR_ANY], 49[AC_REQUIRE([AC_STRUCT_IN6_ADDR]) 50if test $ac_cv_struct_in6_addr = no; then 51 ac_cv_decl_in6addr_any=no 52else 53 AC_CACHE_CHECK(for in6addr_any declaration in netinet/in.h, 54 ac_cv_decl_in6addr_any, 55 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 56#include <sys/types.h> 57#include <sys/socket.h> 58#include <netinet/in.h>]], [[ 59unsigned char *address; 60address = (char *)&in6addr_any; 61]])],[ac_cv_decl_in6addr_any=yes],[ac_cv_decl_in6addr_any=no])]) 62 if test "$ac_cv_decl_in6addr_any" = yes; then 63 AC_DEFINE(IN6ADDR_ANY_DECLARED, 1, 64[Define to 1 if `in6addr_any' is declared by <netinet/in.h>]) 65 fi 66fi]) 67 68dnl * 69dnl * Check for in6addr_loopback. 70dnl * 71AC_DEFUN([AC_DECL_IN6ADDR_LOOPBACK], 72[AC_REQUIRE([AC_STRUCT_IN6_ADDR]) 73if test $ac_cv_struct_in6_addr = no; then 74 ac_cv_decl_in6addr_loopback=no 75else 76 AC_CACHE_CHECK(for in6addr_loopback declaration in netinet/in.h, 77 ac_cv_decl_in6addr_loopback, 78 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 79#include <sys/types.h> 80#include <sys/socket.h> 81#include <netinet/in.h>]], [[ 82unsigned char *address; 83address = (char *)&in6addr_loopback; 84]])],[ac_cv_decl_in6addr_loopback=yes],[ac_cv_decl_in6addr_loopback=no])]) 85 if test "$ac_cv_decl_in6addr_loopback" = yes; then 86 AC_DEFINE(IN6ADDR_LOOPBACK_DECLARED, 1, 87[Define to 1 if `in6addr_loopback' is declared by <netinet/in.h>]) 88 fi 89fi]) 90