diff options
Diffstat (limited to 'm4/socket.m4')
| -rw-r--r-- | m4/socket.m4 | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/m4/socket.m4 b/m4/socket.m4 new file mode 100644 index 00000000..e0cbb7be --- /dev/null +++ b/m4/socket.m4 @@ -0,0 +1,85 @@ +dnl +dnl socket.m4 --- autoconf input file for gawk +dnl +dnl Copyright (C) 1995, 96, 98, 99, 2000 the Free Software Foundation, Inc. +dnl +dnl This file is part of GAWK, the GNU implementation of the +dnl AWK Progamming Language. +dnl +dnl GAWK is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation; either version 2 of the License, or +dnl (at your option) any later version. +dnl +dnl GAWK is distributed in the hope that it will be useful, +dnl but WITHOUT ANY WARRANTY; without even the implied warranty of +dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +dnl GNU General Public License for more details. +dnl +dnl You should have received a copy of the GNU General Public License +dnl along with this program; if not, write to the Free Software +dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA +dnl + +dnl Find the socket libraries +dnl largely stolen from AC_PATH_XTRA +AC_DEFUN(GAWK_AC_LIB_SOCKETS, [ +gawk_have_sockets=no +# Check for system-dependent location of socket libraries + +SOCKET_LIBS= +if test "$ISC" = yes; then + SOCKET_LIBS="-lnsl_s -linet" +else + # Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X + # libraries were built with DECnet support. And karl@cs.umb.edu says + # the Alpha needs dnet_stub (dnet does not exist). + # + # ADR: Is this needed just for sockets??? +# AC_CHECK_LIB(dnet, dnet_ntoa, [SOCKET_LIBS="$SOCKET_LIBS -ldnet"]) +# if test $ac_cv_lib_dnet_ntoa = no; then +# AC_CHECK_LIB(dnet_stub, dnet_ntoa, +# [SOCKET_LIBS="$SOCKET_LIBS -ldnet_stub"]) +# fi + + # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT, + # to get the SysV transport functions. + # chad@anasazi.com says the Pyramid MIS-ES running DC/OSx (SVR4) + # needs -lnsl. + # The nsl library prevents programs from opening the X display + # on Irix 5.2, according to dickey@clark.net. + AC_CHECK_FUNC(gethostbyname) + if test $ac_cv_func_gethostbyname = no; then + AC_CHECK_LIB(nsl, gethostbyname, SOCKET_LIBS="$SOCKET_LIBS -lnsl") + fi + + # lieder@skyler.mavd.honeywell.com says without -lsocket, + # socket/setsockopt and other routines are undefined under SCO ODT + # 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary + # on later versions), says simon@lia.di.epfl.ch: it contains + # gethostby* variants that don't use the nameserver (or something). + # -lsocket must be given before -lnsl if both are needed. + # We assume that if connect needs -lnsl, so does gethostbyname. + AC_CHECK_FUNC(connect) + if test $ac_cv_func_connect = no; then + AC_CHECK_LIB(socket, connect, SOCKET_LIBS="-lsocket $SOCKET_LIBS" + gawk_have_sockets=yes, , + $SOCKET_LIBS) + else + gawk_have_sockets=yes + fi +fi + +if test "${gawk_have_sockets}" = "yes" +then + AC_MSG_CHECKING([where to find the socket library calls]) + case "${SOCKET_LIBS}" in + ?*) gawk_lib_loc="${SOCKET_LIBS}" ;; + *) gawk_lib_loc="the standard library" ;; + esac + AC_MSG_RESULT([${gawk_lib_loc}]) + + AC_DEFINE(HAVE_SOCKETS) +fi +AC_SUBST(SOCKET_LIBS)dnl +])dnl |