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131 lines
3.7 KiB
Plaintext
131 lines
3.7 KiB
Plaintext
# getaddrinfo.m4 serial 15
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dnl Copyright (C) 2004, 2005, 2006, 2007 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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AC_DEFUN([gl_GETADDRINFO],
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[
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
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AC_CHECK_HEADERS_ONCE(netdb.h)
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AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
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AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
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AC_TRY_LINK([
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#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_NETDB_H
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#include <netdb.h>
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#endif
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#include <stddef.h>
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], [getaddrinfo("", "", NULL, NULL);],
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[gl_cv_func_getaddrinfo=yes],
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[gl_cv_func_getaddrinfo=no])])
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if test $gl_cv_func_getaddrinfo = no; then
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AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
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gl_cv_w32_getaddrinfo, [
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gl_cv_w32_getaddrinfo=no
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am_save_LIBS="$LIBS"
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LIBS="$LIBS -lws2_32"
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AC_TRY_LINK([
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#ifdef HAVE_WS2TCPIP_H
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#include <ws2tcpip.h>
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#endif
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#include <stddef.h>
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], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
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LIBS="$am_save_LIBS"])
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if test "$gl_cv_w32_getaddrinfo" = "yes"; then
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LIBS="$LIBS -lws2_32"
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else
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AC_LIBOBJ(getaddrinfo)
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fi
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fi
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# We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
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# inline function declared in ws2tcpip.h, so we need to get that
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# header included somehow.
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AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
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gl_cv_func_gai_strerror, [
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AC_TRY_LINK([
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#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_NETDB_H
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#include <netdb.h>
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#endif
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#ifdef HAVE_WS2TCPIP_H
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#include <ws2tcpip.h>
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#endif
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#include <stddef.h>
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], [gai_strerror (NULL);],
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[gl_cv_func_gai_strerror=yes],
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[gl_cv_func_gai_strerror=no])])
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if test $gl_cv_func_gai_strerror = no; then
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AC_LIBOBJ(gai_strerror)
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fi
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gl_PREREQ_GETADDRINFO
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])
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# Prerequisites of lib/getaddrinfo.h and lib/getaddrinfo.c.
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AC_DEFUN([gl_PREREQ_GETADDRINFO], [
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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AC_SEARCH_LIBS(gethostbyname, [inet nsl])
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AC_SEARCH_LIBS(getservbyname, [inet nsl socket xnet])
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AC_CHECK_FUNCS(gethostbyname,, [
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AC_CACHE_CHECK(for gethostbyname in winsock2.h and -lws2_32,
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gl_cv_w32_gethostbyname, [
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gl_cv_w32_gethostbyname=no
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am_save_LIBS="$LIBS"
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LIBS="$LIBS -lws2_32"
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AC_TRY_LINK([
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#ifdef HAVE_WINSOCK2_H
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#include <winsock2.h>
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#endif
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#include <stddef.h>
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], [gethostbyname(NULL);], gl_cv_w32_gethostbyname=yes)
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LIBS="$am_save_LIBS"])
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if test "$gl_cv_w32_gethostbyname" = "yes"; then
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LIBS="$LIBS -lws2_32"
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fi
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])
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AC_REQUIRE([AC_C_RESTRICT])
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AC_REQUIRE([gl_SOCKET_FAMILIES])
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])
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AC_REQUIRE([AC_C_INLINE])
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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AC_CHECK_HEADERS_ONCE(netinet/in.h netdb.h)
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AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
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/* sys/types.h is not needed according to POSIX, but the
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sys/socket.h in i386-unknown-freebsd4.10 and
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powerpc-apple-darwin5.5 required it. */
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#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_NETDB_H
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#include <netdb.h>
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#endif
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#ifdef HAVE_WS2TCPIP_H
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#include <ws2tcpip.h>
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#endif
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])
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AC_CHECK_TYPES([struct addrinfo],,,[
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#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_NETDB_H
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#include <netdb.h>
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#endif
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#ifdef HAVE_WS2TCPIP_H
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#include <ws2tcpip.h>
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#endif
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])
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])
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