Annotation of embedaddon/iperf/config/ax_lib_socket_nsl.m4, revision 1.1.1.1
1.1 misho 1: # ===========================================================================
2: # http://www.gnu.org/software/autoconf-archive/ax_lib_socket_nsl.html
3: # ===========================================================================
4: #
5: # SYNOPSIS
6: #
7: # AX_LIB_SOCKET_NSL
8: #
9: # DESCRIPTION
10: #
11: # This macro figures out what libraries are required on this platform to
12: # link sockets programs.
13: #
14: # The common cases are not to need any extra libraries, or to need
15: # -lsocket and -lnsl. We need to avoid linking with libnsl unless we need
16: # it, though, since on some OSes where it isn't necessary it will totally
17: # break networking. Unisys also includes gethostbyname() in libsocket but
18: # needs libnsl for socket().
19: #
20: # LICENSE
21: #
22: # Copyright (c) 2008 Russ Allbery <rra@stanford.edu>
23: # Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>
24: # Copyright (c) 2008 Warren Young <warren@etr-usa.com>
25: #
26: # Copying and distribution of this file, with or without modification, are
27: # permitted in any medium without royalty provided the copyright notice
28: # and this notice are preserved. This file is offered as-is, without any
29: # warranty.
30:
31: #serial 6
32:
33: AU_ALIAS([LIB_SOCKET_NSL], [AX_LIB_SOCKET_NSL])
34: AC_DEFUN([AX_LIB_SOCKET_NSL],
35: [
36: AC_SEARCH_LIBS([gethostbyname], [nsl])
37: AC_SEARCH_LIBS([socket], [socket], [], [
38: AC_CHECK_LIB([socket], [socket], [LIBS="-lsocket -lnsl $LIBS"],
39: [], [-lnsl])])
40: ])
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