25 lines
869 B
Text
25 lines
869 B
Text
dnl @synopsis LIB_SOCKET_NSL
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dnl
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dnl This macro figures out what libraries are required on this platform
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dnl to link sockets programs.
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dnl
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dnl The common cases are not to need any extra libraries, or to need
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dnl -lsocket and -lnsl. We need to avoid linking with libnsl unless we
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dnl need it, though, since on some OSes where it isn't necessary it
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dnl will totally break networking. Unisys also includes gethostbyname()
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dnl in libsocket but needs libnsl for socket().
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dnl
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dnl @category Misc
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dnl @author Russ Allbery <rra@stanford.edu>
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dnl @author Stepan Kasal <kasal@ucw.cz>
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dnl @author Warren Young <warren@etr-usa.com>
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dnl @version 2005-09-06
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dnl @license AllPermissive
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AC_DEFUN([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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