1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl NUT_CHECK_SOCKETLIB
dnl Determines the library to use for socket functions.
dnl Sets and AC_SUBSTs NETLIBS.
dnl This code comes from gnulib trunk (4 Nov. 2010).
AC_DEFUN([NUT_CHECK_SOCKETLIB],
[
NUT_PREREQ_SYS_H_SOCKET dnl for HAVE_WINSOCK2_H
NETLIBS=
if test $HAVE_WINSOCK2_H = 1; then
dnl Native Windows API (not Cygwin).
AC_CACHE_CHECK([if we need to call WSAStartup in winsock2.h and -lws2_32],
[nut_cv_func_wsastartup], [
nut_save_LIBS="$LIBS"
LIBS="$LIBS -lws2_32"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef HAVE_WINSOCK2_H
# include <winsock2.h>
#endif]], [[
WORD wVersionRequested = MAKEWORD(1, 1);
WSADATA wsaData;
int err = WSAStartup(wVersionRequested, &wsaData);
WSACleanup ();]])],
nut_cv_func_wsastartup=yes, nut_cv_func_wsastartup=no)
LIBS="$nut_save_LIBS"
])
if test "$nut_cv_func_wsastartup" = "yes"; then
AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.])
NETLIBS='-lws2_32'
fi
fi
AC_SUBST([NETLIBS])
AM_CONDITIONAL([HAVE_WINDOWS_SOCKETS], [test "$nut_cv_func_wsastartup" = "yes"])
])
|
