dnl Macros that test for specific features. dnl This file is part of the Autoconf packaging for Ethereal. dnl Copyright (C) 1998-2000 by Gerald Combs. dnl dnl $Id: acinclude.m4,v 1.6 2006/03/10 09:29:47 bchiara Exp $ dnl dnl This program 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, or (at your option) dnl any later version. dnl dnl This program 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 dnl 02111-1307, USA. dnl dnl As a special exception, the Free Software Foundation gives unlimited dnl permission to copy, distribute and modify the configure scripts that dnl are the output of Autoconf. You need not follow the terms of the GNU dnl General Public License when using or distributing such scripts, even dnl though portions of the text of Autoconf appear in them. The GNU dnl General Public License (GPL) does govern all other use of the material dnl that constitutes the Autoconf program. dnl dnl Certain portions of the Autoconf source text are designed to be copied dnl (in certain cases, depending on the input) into the output of dnl Autoconf. We call these the "data" portions. The rest of the Autoconf dnl source text consists of comments plus executable code that decides which dnl of the data portions to output in any given case. We call these dnl comments and executable code the "non-data" portions. Autoconf never dnl copies any of the non-data portions into its output. dnl dnl This special exception to the GPL applies to versions of Autoconf dnl released by the Free Software Foundation. When you make and dnl distribute a modified version of Autoconf, you may extend this special dnl exception to the GPL to apply to your modified version as well, *unless* dnl your modified version has the potential to copy into its output some dnl of the text that was the non-data portion of the version that you started dnl with. (In other words, unless your change moves or copies text from dnl the non-data portions to the data portions.) If your modification has dnl such potential, you must delete any notice of this special exception dnl to the GPL from your modified version. dnl dnl Written by David MacKenzie, with help from dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, dnl Roland McGrath, Noah Friedman, david d zuhn, and many others. dnl Adapted for etherape by Juan Toledo (if you can call adapt to cut & dnl paste :-) ) # # AC_ETHEREAL_GETHOSTBY_LIB_CHECK # # Checks whether we need "-lnsl" to get "gethostby*()", which we use # in "resolv.c". # # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in # GNU Autoconf 2.13; the comment came from there. # Done by Guy Harris on 2000-01-14. # AC_DEFUN([AC_ETHEREAL_GETHOSTBY_LIB_CHECK], [ # 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, NSL_LIBS="-lnsl") fi AC_SUBST(NSL_LIBS) ]) # # AC_ETHEREAL_SOCKET_LIB_CHECK # # Checks whether we need "-lsocket" to get "socket()", which is used # by libpcap on some platforms - and, in effect, "gethostby*()" on # most if not all platforms (so that it can use NIS or DNS or... # to look up host names). # # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in # GNU Autoconf 2.13; the comment came from there. # Done by Guy Harris on 2000-01-14. # # We use "connect" because that's what AC_PATH_XTRA did. # AC_DEFUN([AC_ETHEREAL_SOCKET_LIB_CHECK], [ # 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", AC_MSG_ERROR(Function 'socket' not found.), $NSL_LIBS) fi AC_SUBST(SOCKET_LIBS) ]) # # AC_ETHEREAL_PCAP_CHECK # AC_DEFUN([AC_ETHEREAL_PCAP_CHECK], [ # Evidently, some systems have pcap.h, etc. in */include/pcap AC_MSG_CHECKING(for extraneous pcap header directories) found_pcap_dir="" for pcap_dir in /usr/include/pcap /usr/local/include/pcap $prefix/include do if test -d $pcap_dir ; then CFLAGS="$CFLAGS -I$pcap_dir" CPPFLAGS="$CPPFLAGS -I$pcap_dir" found_pcap_dir=" $found_pcap_dir -I$pcap_dir" fi done if test "$found_pcap_dir" != "" ; then AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS) else AC_MSG_RESULT(not found) fi # Pcap header checks AC_CHECK_HEADER(pcap.h,, AC_MSG_ERROR([[Header file pcap.h not found; You need libcap development package, or if you installed libpcap from source, do \"make install-incl\"]])) # # Check to see if we find "pcap_open_live" in "-lpcap". # AC_CHECK_LIB(pcap, pcap_open_live, [ # TODO # This is a dirty hack, but I don't know any other way # to do it. If you do, please tell me. if test "x$STATIC_PCAP" != "xyes"; then PCAP_LIBS=-lpcap fi if test "x$STATIC_PCAP" = "xyes"; then PCAP_LIBS="-Wl,-Bstatic -lpcap -Wl,-Bdynamic" echo "Forcing static pcap linking" fi AC_DEFINE(HAVE_LIBPCAP) ], AC_MSG_ERROR(Library libpcap not found.), $SOCKET_LIBS $NSL_LIBS) AC_SUBST(PCAP_LIBS) ])