dnl -*-m4-*-
dnl
dnl $Id: configure.in,v 1.37 2003/12/13 20:37:59 mdw Exp $
dnl
dnl Configuration script for mLib
dnl
dnl (c) 1998 Straylight/Edgeware
dnl

dnl ----- Licensing notice --------------------------------------------------
dnl
dnl This file is part of the mLib utilities library.
dnl
dnl mLib is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Library General Public License as
dnl published by the Free Software Foundation; either version 2 of the
dnl License, or (at your option) any later version.
dnl 
dnl mLib 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 Library General Public License for more details.
dnl 
dnl You should have received a copy of the GNU Library General Public
dnl License along with mLib; if not, write to the Free
dnl Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
dnl MA 02111-1307, USA.

dnl ----- Revision history --------------------------------------------------
dnl
dnl $Log: configure.in,v $
dnl Revision 1.37  2003/12/13 20:37:59  mdw
dnl Add adns support in background resolver.
dnl
dnl Revision 1.36  2003/11/29 20:38:38  mdw
dnl Debianization fixes.
dnl
dnl Revision 1.35  2003/11/29 11:59:17  mdw
dnl Various stuff.
dnl
dnl Revision 1.34  2003/10/12 14:54:18  mdw
dnl Version bump.
dnl
dnl Revision 1.33  2003/05/18 15:17:04  mdw
dnl Version bump.
dnl
dnl Revision 1.32  2003/05/16 00:26:22  mdw
dnl Version bump.
dnl
dnl Revision 1.30  2003/04/23 12:50:30  mdw
dnl New manpage installer.
dnl
dnl Revision 1.29  2001/06/22 19:34:07  mdw
dnl Find out whether @<float.h>@ exists (hack for uC-Linux).
dnl
dnl Revision 1.28  2000/10/08 11:07:55  mdw
dnl Define a constant to tell @mdwopt@ that @str_qword@ is available.
dnl Reinstate the `-pedantic' option to GCC.
dnl
dnl Revision 1.27  2000/08/15 21:39:13  mdw
dnl New library configuration stuff from `common'.
dnl
dnl Revision 1.25  2000/07/16 18:57:42  mdw
dnl Version bump.  Change compiler flags.
dnl
dnl Revision 1.19  1999/11/11 18:47:33  mdw
dnl Use `libtool' to generate a shared library.
dnl
dnl Revision 1.18  1999/11/11 17:48:28  mdw
dnl New configuration system for library clients.
dnl
dnl Revision 1.17  1999/10/04 21:48:50  mdw
dnl Find libraries for standalone name resolver server.
dnl
dnl Revision 1.14  1999/07/06 19:18:47  mdw
dnl Handle new manual page directory.
dnl
dnl Revision 1.11  1999/05/21 22:11:20  mdw
dnl Omitted version number changes from change log.  Changed version
dnl number. ;-)
dnl
dnl Revision 1.8  1999/05/14 21:08:56  mdw
dnl Bump version number to 1.3, to celebrate adding in the `select'
dnl routines.
dnl
dnl Revision 1.6  1999/05/06 19:51:35  mdw
dnl Reformatted the LGPL notice a little bit.
dnl
dnl Revision 1.5  1999/05/05 18:50:31  mdw
dnl Change licensing conditions to LGPL.
dnl
dnl Revision 1.4  1999/03/24 22:22:57  mdw
dnl Remove redundant call to AC_PROG_INSTALL.
dnl
dnl Revision 1.3  1998/12/15 23:52:42  mdw
dnl Reordered and tidied.
dnl
dnl Revision 1.1.1.1  1998/06/17 23:44:42  mdw
dnl Initial version of mLib
dnl

AC_INIT(exc.c)
mdw_INIT_LIB(mLib, mLib, 2.0.3)

AC_PROG_CC
AM_PROG_LIBTOOL
mdw_GCC_FLAGS
mdw_MANEXT

AC_CHECK_HEADERS(float.h)

mdw_CHECK_MANYLIBS(socket, socket)
mdw_CHECK_MANYLIBS(gethostbyname, nsl resolv)

DEPLIBS=$LIBS AC_SUBST(DEPLIBS)
BRES_LIBEXEC="bres" BRES_SOURCE="bres"
AC_SUBST(BRES_LIBEXEC) AC_SUBST(BRES_SOURCE)
AC_ARG_WITH(adns,
[  --with-adns             use ADNS library for background name resolution],
[want_adns=$withval], [want_adns=auto])
if test $want_adns != no; then
  save_LIBS=$LIBS
  LIBS=$DEPLIBS
  mdw_CHECK_MANYLIBS(adns_init, adns, [have_adns=yes], [have_adns=no])
  DEPLIBS=$LIBS
  LIBS=$save_LIBS
  if test $have_adns = yes; then
    AC_DEFINE(HAVE_ADNS)
    BRES_LIBEXEC=""
    BRES_SOURCE="bres-adns"
  elif test $want_adns = yes; then
    AC_MSG_ERROR([ADNS library not found, but explicitly requested])
  fi
fi

AC_CACHE_CHECK([for msg_control], [mdw_cv_msg_control],
[AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/socket.h>],
[struct msghdr msg;
msg.msg_control = 0;],
[mdw_cv_msg_control=yes],
[mdw_cv_msg_control=no])])
if test $mdw_cv_msg_control = no; then
  AC_DEFINE([HAVE_MSG_ACCRIGHTS])
fi

AC_DEFINE(BUILDING_MLIB)
mdw_OPT_mLib_DEBUG(mLib)

AC_OUTPUT(Makefile man/Makefile mLib-config:lib-config.in)