dnl * dnl * Copyright (c) 2001 Motoyuki Kasahara dnl * dnl * Redistribution and use in source and binary forms, with or without dnl * modification, are permitted provided that the following conditions dnl * are met: dnl * 1. Redistributions of source code must retain the above copyright dnl * notice, this list of conditions and the following disclaimer. dnl * 2. Redistributions in binary form must reproduce the above copyright dnl * notice, this list of conditions and the following disclaimer in the dnl * documentation and/or other materials provided with the distribution. dnl * 3. Neither the name of the project nor the names of its contributors dnl * may be used to endorse or promote products derived from this software dnl * without specific prior written permission. dnl * dnl * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND dnl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE dnl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR dnl * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORSBE dnl * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR dnl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF dnl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS dnl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN dnl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) dnl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF dnl * THE POSSIBILITY OF SUCH DAMAGE. dnl * dnl * dnl * Check for struct in6_addr dnl * AC_DEFUN([AC_STRUCT_IN6_ADDR], [AC_CACHE_CHECK(for struct in6_addr, ac_cv_struct_in6_addr, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h>]], [[ struct in6_addr address; ]])],[ac_cv_struct_in6_addr=yes],[ac_cv_struct_in6_addr=no])]) if test "$ac_cv_struct_in6_addr" = yes; then AC_DEFINE(HAVE_STRUCT_IN6_ADDR, 1, [Define to 1 if <netinet/in.h> defines `struct in6_addr']) fi]) dnl * dnl * Check for in6addr_any. dnl * AC_DEFUN([AC_DECL_IN6ADDR_ANY], [AC_REQUIRE([AC_STRUCT_IN6_ADDR]) if test $ac_cv_struct_in6_addr = no; then ac_cv_decl_in6addr_any=no else AC_CACHE_CHECK(for in6addr_any declaration in netinet/in.h, ac_cv_decl_in6addr_any, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h>]], [[ unsigned char *address; address = (char *)&in6addr_any; ]])],[ac_cv_decl_in6addr_any=yes],[ac_cv_decl_in6addr_any=no])]) if test "$ac_cv_decl_in6addr_any" = yes; then AC_DEFINE(IN6ADDR_ANY_DECLARED, 1, [Define to 1 if `in6addr_any' is declared by <netinet/in.h>]) fi fi]) dnl * dnl * Check for in6addr_loopback. dnl * AC_DEFUN([AC_DECL_IN6ADDR_LOOPBACK], [AC_REQUIRE([AC_STRUCT_IN6_ADDR]) if test $ac_cv_struct_in6_addr = no; then ac_cv_decl_in6addr_loopback=no else AC_CACHE_CHECK(for in6addr_loopback declaration in netinet/in.h, ac_cv_decl_in6addr_loopback, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h>]], [[ unsigned char *address; address = (char *)&in6addr_loopback; ]])],[ac_cv_decl_in6addr_loopback=yes],[ac_cv_decl_in6addr_loopback=no])]) if test "$ac_cv_decl_in6addr_loopback" = yes; then AC_DEFINE(IN6ADDR_LOOPBACK_DECLARED, 1, [Define to 1 if `in6addr_loopback' is declared by <netinet/in.h>]) fi fi])