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59 lines
1.8 KiB
Plaintext
59 lines
1.8 KiB
Plaintext
# sockpfaf.m4 serial 5
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dnl Copyright (C) 2004, 2006 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...)
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dnl and some common address families (AF_INET, AF_INET6, ...).
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dnl This test assumes that a system supports an address family if and only if
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dnl it supports the corresponding protocol family.
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dnl From Bruno Haible.
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AC_DEFUN([gl_SOCKET_FAMILIES],
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[
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])
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AC_CHECK_HEADERS_ONCE([netinet/in.h])
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AC_MSG_CHECKING(for IPv4 sockets)
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AC_CACHE_VAL(gl_cv_socket_ipv4,
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[AC_TRY_COMPILE([#include <sys/types.h>
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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_WINSOCK2_H
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#include <winsock2.h>
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#endif],
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[int x = AF_INET; struct in_addr y; struct sockaddr_in z;
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if (&x && &y && &z) return 0;],
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gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)])
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AC_MSG_RESULT($gl_cv_socket_ipv4)
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if test $gl_cv_socket_ipv4 = yes; then
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AC_DEFINE(HAVE_IPV4, 1, [Define to 1 if <sys/socket.h> defines AF_INET.])
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fi
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AC_MSG_CHECKING(for IPv6 sockets)
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AC_CACHE_VAL(gl_cv_socket_ipv6,
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[AC_TRY_COMPILE([#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_WINSOCK2_H
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#include <winsock2.h>
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#endif],
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[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;
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if (&x && &y && &z) return 0;],
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gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)])
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AC_MSG_RESULT($gl_cv_socket_ipv6)
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if test $gl_cv_socket_ipv6 = yes; then
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AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if <sys/socket.h> defines AF_INET6.])
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fi
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])
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