86 lines
3.1 KiB
Plaintext
86 lines
3.1 KiB
Plaintext
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dnl
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dnl socket.m4 --- autoconf input file for gawk
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dnl
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dnl Copyright (C) 1995, 1996, 1998, 1999, 2000, 2003, 2004 the Free Software Foundation, Inc.
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dnl
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dnl This file is part of GAWK, the GNU implementation of the
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dnl AWK Progamming Language.
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dnl
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dnl GAWK is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl GAWK is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program; if not, write to the Free Software
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dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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dnl
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dnl Find the socket libraries
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dnl largely stolen from AC_PATH_XTRA
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AC_DEFUN([GAWK_AC_LIB_SOCKETS], [
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gawk_have_sockets=no
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# Check for system-dependent location of socket libraries
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SOCKET_LIBS=
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if test "$ISC" = yes; then
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SOCKET_LIBS="-lnsl_s -linet"
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else
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# Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X
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# libraries were built with DECnet support. And karl@cs.umb.edu says
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# the Alpha needs dnet_stub (dnet does not exist).
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#
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# ADR: Is this needed just for sockets???
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# AC_CHECK_LIB(dnet, dnet_ntoa, [SOCKET_LIBS="$SOCKET_LIBS -ldnet"])
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# if test $ac_cv_lib_dnet_ntoa = no; then
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# AC_CHECK_LIB(dnet_stub, dnet_ntoa,
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# [SOCKET_LIBS="$SOCKET_LIBS -ldnet_stub"])
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# fi
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# msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
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# to get the SysV transport functions.
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# chad@anasazi.com says the Pyramid MIS-ES running DC/OSx (SVR4)
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# needs -lnsl.
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# The nsl library prevents programs from opening the X display
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# on Irix 5.2, according to dickey@clark.net.
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AC_CHECK_FUNC(gethostbyname)
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if test $ac_cv_func_gethostbyname = no; then
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AC_CHECK_LIB(nsl, gethostbyname, SOCKET_LIBS="$SOCKET_LIBS -lnsl")
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fi
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# lieder@skyler.mavd.honeywell.com says without -lsocket,
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# socket/setsockopt and other routines are undefined under SCO ODT
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# 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary
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# on later versions), says simon@lia.di.epfl.ch: it contains
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# gethostby* variants that don't use the nameserver (or something).
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# -lsocket must be given before -lnsl if both are needed.
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# We assume that if connect needs -lnsl, so does gethostbyname.
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AC_CHECK_FUNC(connect)
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if test $ac_cv_func_connect = no; then
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AC_CHECK_LIB(socket, connect, SOCKET_LIBS="-lsocket $SOCKET_LIBS"
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gawk_have_sockets=yes, ,
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$SOCKET_LIBS)
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else
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gawk_have_sockets=yes
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fi
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fi
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if test "${gawk_have_sockets}" = "yes"
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then
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AC_MSG_CHECKING([where to find the socket library calls])
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case "${SOCKET_LIBS}" in
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?*) gawk_lib_loc="${SOCKET_LIBS}" ;;
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*) gawk_lib_loc="the standard library" ;;
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esac
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AC_MSG_RESULT([${gawk_lib_loc}])
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AC_DEFINE(HAVE_SOCKETS, 1, [we have sockets on this system])
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fi
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AC_SUBST(SOCKET_LIBS)dnl
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])dnl
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