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41 lines
1.4 KiB
Plaintext
41 lines
1.4 KiB
Plaintext
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_lib_socket_nsl.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_LIB_SOCKET_NSL
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#
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# DESCRIPTION
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#
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# This macro figures out what libraries are required on this platform to
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# link sockets programs.
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#
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# The common cases are not to need any extra libraries, or to need
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# -lsocket and -lnsl. We need to avoid linking with libnsl unless we need
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# it, though, since on some OSes where it isn't necessary it will totally
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# break networking. Unisys also includes gethostbyname() in libsocket but
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# needs libnsl for socket().
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#
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# LICENSE
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#
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# Copyright (c) 2008 Russ Allbery <rra@stanford.edu>
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# Copyright (c) 2008 Stepan Kasal <kasal@ucw.cz>
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# Copyright (c) 2008 Warren Young <warren@etr-usa.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 7
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AU_ALIAS([LIB_SOCKET_NSL], [AX_LIB_SOCKET_NSL])
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AC_DEFUN([AX_LIB_SOCKET_NSL],
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[
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AC_SEARCH_LIBS([gethostbyname], [nsl])
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AC_SEARCH_LIBS([socket], [socket], [], [
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AC_CHECK_LIB([socket], [socket], [LIBS="-lsocket -lnsl $LIBS"],
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[], [-lnsl])])
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])
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