Merge remote-tracking branch 'origin/stable-2.0'
[bpt/guile.git] / m4 / getaddrinfo.m4
CommitLineData
35428fb6 1# getaddrinfo.m4 serial 29
f0007cad 2dnl Copyright (C) 2004-2012 Free Software Foundation, Inc.
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3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_GETADDRINFO],
8[
9 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
10 AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H
11 AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
12 GETADDRINFO_LIB=
13 gai_saved_LIBS="$LIBS"
14
15 dnl Where is getaddrinfo()?
16 dnl - On Solaris, it is in libsocket.
17 dnl - On Haiku, it is in libnetwork.
18 dnl - On BeOS, it is in libnet.
19 dnl - On native Windows, it is in ws2_32.dll.
20 dnl - Otherwise it is in libc.
21 AC_SEARCH_LIBS([getaddrinfo], [socket network net],
22 [if test "$ac_cv_search_getaddrinfo" != "none required"; then
23 GETADDRINFO_LIB="$ac_cv_search_getaddrinfo"
24 fi])
25 LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
26
3d458a81 27 HAVE_GETADDRINFO=1
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28 AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
29 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
30#include <sys/types.h>
31#ifdef HAVE_SYS_SOCKET_H
32#include <sys/socket.h>
33#endif
34#ifdef HAVE_NETDB_H
35#include <netdb.h>
36#endif
37#include <stddef.h>
38]], [[getaddrinfo("", "", NULL, NULL);]])],
39 [gl_cv_func_getaddrinfo=yes],
40 [gl_cv_func_getaddrinfo=no])])
41 if test $gl_cv_func_getaddrinfo = no; then
42 AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32],
43 gl_cv_w32_getaddrinfo, [
44 gl_cv_w32_getaddrinfo=no
45 am_save_LIBS="$LIBS"
46 LIBS="$LIBS -lws2_32"
47 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
48#ifdef HAVE_WS2TCPIP_H
49#include <ws2tcpip.h>
50#endif
51#include <stddef.h>
52]], [[getaddrinfo(NULL, NULL, NULL, NULL);]])], [gl_cv_w32_getaddrinfo=yes])
53 LIBS="$am_save_LIBS"
54 ])
55 if test "$gl_cv_w32_getaddrinfo" = "yes"; then
56 GETADDRINFO_LIB="-lws2_32"
57 LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
58 else
3d458a81 59 HAVE_GETADDRINFO=0
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60 fi
61 fi
62
63 # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
64 # inline function declared in ws2tcpip.h, so we need to get that
65 # header included somehow.
35428fb6 66 AC_CHECK_DECLS([gai_strerror], [], [], [[
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67#include <sys/types.h>
68#ifdef HAVE_SYS_SOCKET_H
69#include <sys/socket.h>
70#endif
71#ifdef HAVE_NETDB_H
72#include <netdb.h>
73#endif
74#ifdef HAVE_WS2TCPIP_H
75#include <ws2tcpip.h>
76#endif
77#include <stddef.h>
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78]])
79 if test $ac_cv_have_decl_gai_strerror = yes; then
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80 AC_CHECK_DECLS([gai_strerrorA], [], [], [[
81#include <sys/types.h>
82#ifdef HAVE_SYS_SOCKET_H
83#include <sys/socket.h>
84#endif
85#ifdef HAVE_NETDB_H
86#include <netdb.h>
87#endif
88#ifdef HAVE_WS2TCPIP_H
89#include <ws2tcpip.h>
90#endif
91#include <stddef.h>
92]])
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93 dnl check for correct signature
94 AC_CACHE_CHECK([for gai_strerror with POSIX signature],
95 [gl_cv_func_gai_strerror_posix_signature], [
96 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
97#include <sys/types.h>
98#ifdef HAVE_SYS_SOCKET_H
99#include <sys/socket.h>
100#endif
101#ifdef HAVE_NETDB_H
102#include <netdb.h>
103#endif
104#ifdef HAVE_WS2TCPIP_H
105#include <ws2tcpip.h>
106#endif
107#include <stddef.h>
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108extern
109#ifdef __cplusplus
110"C"
111#endif
112const char *gai_strerror(int);]])],
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113 [gl_cv_func_gai_strerror_posix_signature=yes],
114 [gl_cv_func_gai_strerror_posix_signature=no])])
115 if test $gl_cv_func_gai_strerror_posix_signature = no; then
116 REPLACE_GAI_STRERROR=1
117 fi
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118 fi
119
120 LIBS="$gai_saved_LIBS"
121
122 gl_PREREQ_GETADDRINFO
123
124 AC_SUBST([GETADDRINFO_LIB])
125])
126
127# Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c.
128AC_DEFUN([gl_PREREQ_GETADDRINFO], [
129 AC_REQUIRE([gl_NETDB_H_DEFAULTS])
130 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
131 AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB
132 AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB
a927b6c1 133 AC_REQUIRE([gl_FUNC_INET_NTOP]) dnl for INET_NTOP_LIB
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134 AC_REQUIRE([AC_C_RESTRICT])
135 AC_REQUIRE([gl_SOCKET_FAMILIES])
136 AC_REQUIRE([gl_HEADER_SYS_SOCKET])
137 AC_REQUIRE([AC_C_INLINE])
138 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
139
140 dnl Including sys/socket.h is wrong for Windows, but Windows does not
141 dnl have sa_len so the result is correct anyway.
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142 AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [
143#include <sys/types.h>
144#include <sys/socket.h>
145])
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146
147 AC_CHECK_HEADERS_ONCE([netinet/in.h])
148
35428fb6 149 AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, getnameinfo],,,[[
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150 /* sys/types.h is not needed according to POSIX, but the
151 sys/socket.h in i386-unknown-freebsd4.10 and
152 powerpc-apple-darwin5.5 required it. */
153#include <sys/types.h>
154#ifdef HAVE_SYS_SOCKET_H
155#include <sys/socket.h>
156#endif
157#ifdef HAVE_NETDB_H
158#include <netdb.h>
159#endif
160#ifdef HAVE_WS2TCPIP_H
161#include <ws2tcpip.h>
162#endif
35428fb6 163]])
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164 if test $ac_cv_have_decl_getaddrinfo = no; then
165 HAVE_DECL_GETADDRINFO=0
166 fi
167 if test $ac_cv_have_decl_freeaddrinfo = no; then
168 HAVE_DECL_FREEADDRINFO=0
169 fi
170 if test $ac_cv_have_decl_gai_strerror = no; then
171 HAVE_DECL_GAI_STRERROR=0
172 fi
173 if test $ac_cv_have_decl_getnameinfo = no; then
174 HAVE_DECL_GETNAMEINFO=0
175 fi
176
177 AC_CHECK_TYPES([struct addrinfo],,,[
178#include <sys/types.h>
179#ifdef HAVE_SYS_SOCKET_H
180#include <sys/socket.h>
181#endif
182#ifdef HAVE_NETDB_H
183#include <netdb.h>
184#endif
185#ifdef HAVE_WS2TCPIP_H
186#include <ws2tcpip.h>
187#endif
188])
189 if test $ac_cv_type_struct_addrinfo = no; then
190 HAVE_STRUCT_ADDRINFO=0
191 fi
192
193 dnl Append $HOSTENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
194 case " $GETADDRINFO_LIB " in
195 *" $HOSTENT_LIB "*) ;;
196 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $HOSTENT_LIB" ;;
197 esac
198
199 dnl Append $SERVENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
200 case " $GETADDRINFO_LIB " in
201 *" $SERVENT_LIB "*) ;;
202 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;;
203 esac
204
205 dnl Append $INET_NTOP_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
206 case " $GETADDRINFO_LIB " in
207 *" $INET_NTOP_LIB "*) ;;
208 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $INET_NTOP_LIB" ;;
209 esac
210])