1 # getaddrinfo.m4 serial 13
2 dnl Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_GETADDRINFO],
9 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
10 AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
12 AC_SEARCH_LIBS(getaddrinfo, [nsl socket])
13 AC_CHECK_FUNCS(getaddrinfo,, [
14 AC_CACHE_CHECK(for getaddrinfo in ws2tcpip.h and -lws2_32,
15 gl_cv_w32_getaddrinfo, [
16 gl_cv_w32_getaddrinfo=no
20 #ifdef HAVE_WS2TCPIP_H
23 ], [getaddrinfo(0, 0, 0, 0);], gl_cv_w32_getaddrinfo=yes)
24 LIBS="$am_save_LIBS"])
25 if test "$gl_cv_w32_getaddrinfo" = "yes"; then
28 AC_LIBOBJ(getaddrinfo)
32 # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
33 # inline function declared in ws2tcpip.h, so we need to get that
34 # header included somehow.
35 AC_CHECK_HEADERS_ONCE(netdb.h)
36 AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
37 gl_cv_func_gai_strerror, [
39 #include <sys/types.h>
40 #ifdef HAVE_SYS_SOCKET_H
41 #include <sys/socket.h>
46 #ifdef HAVE_WS2TCPIP_H
49 ], [gai_strerror (0);],
50 [gl_cv_func_gai_strerror=yes],
51 [gl_cv_func_gai_strerror=no])])
52 if test $gl_cv_func_gai_strerror = no; then
53 AC_LIBOBJ(gai_strerror)
59 # Prerequisites of lib/getaddrinfo.h and lib/getaddrinfo.c.
60 AC_DEFUN([gl_PREREQ_GETADDRINFO], [
61 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
62 AC_SEARCH_LIBS(gethostbyname, [inet nsl])
63 AC_SEARCH_LIBS(getservbyname, [inet nsl socket xnet])
64 AC_CHECK_FUNCS(gethostbyname,, [
65 AC_CACHE_CHECK(for gethostbyname in winsock2.h and -lws2_32,
66 gl_cv_w32_gethostbyname, [
67 gl_cv_w32_gethostbyname=no
71 #ifdef HAVE_WINSOCK2_H
74 ], [gethostbyname(0);], gl_cv_w32_gethostbyname=yes)
75 LIBS="$am_save_LIBS"])
76 if test "$gl_cv_w32_gethostbyname" = "yes"; then
80 AC_REQUIRE([AC_C_RESTRICT])
81 AC_REQUIRE([gl_SOCKET_FAMILIES])
82 AC_REQUIRE([gl_HEADER_SYS_SOCKET])
83 AC_REQUIRE([AC_C_INLINE])
84 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
85 AC_CHECK_HEADERS_ONCE(netinet/in.h netdb.h)
86 AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, gai_strerror, getnameinfo],,,[
87 /* sys/types.h is not needed according to POSIX, but the
88 sys/socket.h in i386-unknown-freebsd4.10 and
89 powerpc-apple-darwin5.5 required it. */
90 #include <sys/types.h>
91 #ifdef HAVE_SYS_SOCKET_H
92 #include <sys/socket.h>
97 #ifdef HAVE_WS2TCPIP_H
101 AC_CHECK_TYPES([struct addrinfo],,,[
102 #include <sys/types.h>
103 #ifdef HAVE_SYS_SOCKET_H
104 #include <sys/socket.h>
109 #ifdef HAVE_WS2TCPIP_H
110 #include <ws2tcpip.h>