# ===========================================================================

#    https://www.gnu.org/software/autoconf-archive/ax_lib_socket_nsl.html

# ===========================================================================

#

# SYNOPSIS

#

#   AX_LIB_SOCKET_NSL

#

# DESCRIPTION

#

#   This macro figures out what libraries are required on this platform to

#   link sockets programs.

#

#   The common cases are not to need any extra libraries, or to need

#   -lsocket and -lnsl. We need to avoid linking with libnsl unless we need

#   it, though, since on some OSes where it isn't necessary it will totally

#   break networking. Unisys also includes gethostbyname() in libsocket but

#   needs libnsl for socket().

#

# LICENSE

#

#   Copyright (c) 2008 Russ Allbery <rra@stanford.edu>

#   Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>

#   Copyright (c) 2008 Warren Young <warren@etr-usa.com>

#

#   Copying and distribution of this file, with or without modification, are

#   permitted in any medium without royalty provided the copyright notice

#   and this notice are preserved. This file is offered as-is, without any

#   warranty.

#serial 7

AU_ALIAS([LIB_SOCKET_NSL], [AX_LIB_SOCKET_NSL])

AC_DEFUN([AX_LIB_SOCKET_NSL],

[

	AC_SEARCH_LIBS([gethostbyname], [nsl])

	AC_SEARCH_LIBS([socket], [socket], [], [

		AC_CHECK_LIB([socket], [socket], [LIBS="-lsocket -lnsl $LIBS"],

		[], [-lnsl])])

])