Mercurial > hg > octave-jordi > gnulib-hg
view m4/sockpfaf.m4 @ 11386:23f58a4ffca0
Followup to 2008-12-22: Remove unnecessary AC_FUNC_MBRTOWC invocations.
author | Bruno Haible <bruno@clisp.org> |
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date | Tue, 10 Mar 2009 01:19:40 +0100 |
parents | f6cba5a556ce |
children | 56ceeef91c22 |
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# sockpfaf.m4 serial 6 dnl Copyright (C) 2004, 2006, 2009 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) dnl and some common address families (AF_INET, AF_INET6, ...). dnl This test assumes that a system supports an address family if and only if dnl it supports the corresponding protocol family. dnl From Bruno Haible. AC_DEFUN([gl_SOCKET_FAMILIES], [ AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_CHECK_HEADERS_ONCE([netinet/in.h]) AC_MSG_CHECKING([for IPv4 sockets]) AC_CACHE_VAL([gl_cv_socket_ipv4], [AC_TRY_COMPILE([#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETINET_IN_H #include <netinet/in.h> #endif #ifdef HAVE_WINSOCK2_H #include <winsock2.h> #endif], [int x = AF_INET; struct in_addr y; struct sockaddr_in z; if (&x && &y && &z) return 0;], gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) AC_MSG_RESULT([$gl_cv_socket_ipv4]) if test $gl_cv_socket_ipv4 = yes; then AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.]) fi AC_MSG_CHECKING([for IPv6 sockets]) AC_CACHE_VAL([gl_cv_socket_ipv6], [AC_TRY_COMPILE([#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETINET_IN_H #include <netinet/in.h> #endif #ifdef HAVE_WINSOCK2_H #include <winsock2.h> #endif], [int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; if (&x && &y && &z) return 0;], gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) AC_MSG_RESULT([$gl_cv_socket_ipv6]) if test $gl_cv_socket_ipv6 = yes; then AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.]) fi ])