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0f00f2c3 | 1 | # socketlib.m4 serial 1 |
f0007cad | 2 | dnl Copyright (C) 2008-2012 Free Software Foundation, Inc. |
0f00f2c3 LC |
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. | |
6 | ||
7 | dnl gl_SOCKETLIB | |
8 | dnl Determines the library to use for socket functions. | |
9 | dnl Sets and AC_SUBSTs LIBSOCKET. | |
10 | ||
11 | AC_DEFUN([gl_SOCKETLIB], | |
12 | [ | |
13 | gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H | |
14 | LIBSOCKET= | |
15 | if test $HAVE_WINSOCK2_H = 1; then | |
16 | dnl Native Windows API (not Cygwin). | |
17 | AC_CACHE_CHECK([if we need to call WSAStartup in winsock2.h and -lws2_32], | |
18 | [gl_cv_func_wsastartup], [ | |
19 | gl_save_LIBS="$LIBS" | |
20 | LIBS="$LIBS -lws2_32" | |
21 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[ | |
22 | #ifdef HAVE_WINSOCK2_H | |
23 | # include <winsock2.h> | |
24 | #endif]], [[ | |
25 | WORD wVersionRequested = MAKEWORD(1, 1); | |
26 | WSADATA wsaData; | |
27 | int err = WSAStartup(wVersionRequested, &wsaData); | |
28 | WSACleanup ();]])], | |
29 | gl_cv_func_wsastartup=yes, gl_cv_func_wsastartup=no) | |
30 | LIBS="$gl_save_LIBS" | |
31 | ]) | |
32 | if test "$gl_cv_func_wsastartup" = "yes"; then | |
33 | AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.]) | |
34 | LIBSOCKET='-lws2_32' | |
35 | fi | |
36 | else | |
37 | dnl Unix API. | |
38 | dnl Solaris has most socket functions in libsocket. | |
39 | dnl Haiku has most socket functions in libnetwork. | |
40 | dnl BeOS has most socket functions in libnet. | |
41 | AC_CACHE_CHECK([for library containing setsockopt], [gl_cv_lib_socket], [ | |
42 | gl_cv_lib_socket= | |
43 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern | |
44 | #ifdef __cplusplus | |
45 | "C" | |
46 | #endif | |
47 | char setsockopt();]], [[setsockopt();]])], | |
48 | [], | |
49 | [gl_save_LIBS="$LIBS" | |
50 | LIBS="$gl_save_LIBS -lsocket" | |
51 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern | |
52 | #ifdef __cplusplus | |
53 | "C" | |
54 | #endif | |
55 | char setsockopt();]], [[setsockopt();]])], | |
56 | [gl_cv_lib_socket="-lsocket"]) | |
57 | if test -z "$gl_cv_lib_socket"; then | |
58 | LIBS="$gl_save_LIBS -lnetwork" | |
59 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern | |
60 | #ifdef __cplusplus | |
61 | "C" | |
62 | #endif | |
63 | char setsockopt();]], [[setsockopt();]])], | |
64 | [gl_cv_lib_socket="-lnetwork"]) | |
65 | if test -z "$gl_cv_lib_socket"; then | |
66 | LIBS="$gl_save_LIBS -lnet" | |
67 | AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern | |
68 | #ifdef __cplusplus | |
69 | "C" | |
70 | #endif | |
71 | char setsockopt();]], [[setsockopt();]])], | |
72 | [gl_cv_lib_socket="-lnet"]) | |
73 | fi | |
74 | fi | |
75 | LIBS="$gl_save_LIBS" | |
76 | ]) | |
77 | if test -z "$gl_cv_lib_socket"; then | |
78 | gl_cv_lib_socket="none needed" | |
79 | fi | |
80 | ]) | |
81 | if test "$gl_cv_lib_socket" != "none needed"; then | |
82 | LIBSOCKET="$gl_cv_lib_socket" | |
83 | fi | |
84 | fi | |
85 | AC_SUBST([LIBSOCKET]) | |
86 | ]) |