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27 lines
900 B
Plaintext
27 lines
900 B
Plaintext
# hostname.m4 serial 1 (gettext-0.11)
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dnl Copyright (C) 2001-2002 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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# Prerequisites of the hostname.c program.
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AC_DEFUN([gt_PREREQ_HOSTNAME],
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[
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AC_CHECK_HEADERS(arpa/inet.h)
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AC_CHECK_FUNCS(gethostname gethostbyname inet_ntop)
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AC_MSG_CHECKING([for IPv6 sockets])
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AC_CACHE_VAL(gt_cv_socket_ipv6,[
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AC_TRY_COMPILE([
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>],
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[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;],
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gt_cv_socket_ipv6=yes, gt_cv_socket_ipv6=no)
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])
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AC_MSG_RESULT($gt_cv_socket_ipv6)
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if test $gt_cv_socket_ipv6 = yes; then
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AC_DEFINE(HAVE_IPV6, 1, [Define if <sys/socket.h> defines AF_INET6.])
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fi
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])
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