# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

# $Id$

# This file is part of libasyncns.
#
# libasyncns is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# libasyncns is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with libasyncns; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

AC_PREREQ(2.57)
AC_INIT([libasyncns],[0.1],[mznflapaf (at) 0pointer (dot) de])
AC_CONFIG_SRCDIR([libasyncns/asyncns.c])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([foreign -Wall])

AC_SUBST(PA_MAJORMINOR, "$PACKAGE_VERSION")
AC_SUBST(PACKAGE_URL, [http://0pointer.de/lennart/projects/libasyncns/])

AC_SUBST(PA_API_VERSION, 8)

if type -p stow > /dev/null && test -d /usr/local/stow ; then
   AC_MSG_NOTICE([*** Found /usr/local/stow: default install prefix set to /usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION} ***])
   ac_default_prefix="/usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION}"
fi

# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET

# libtool stuff
AC_PROG_LIBTOOL

# Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdlib.h string.h sys/socket.h unistd.h sys/prctl.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
# Checks for library functions.
AC_FUNC_FORK
AC_FUNC_MALLOC
AC_FUNC_SELECT_ARGTYPES
AC_TYPE_SIGNAL
AC_CHECK_FUNCS([memset select strndup setresuid setreuid])

AC_CHECK_LIB(nsl, gethostbyname)
AC_CHECK_LIB(socket, connect)

AC_CHECK_FUNC(res_query, , 
  [AC_CHECK_LIB(resolv, res_query, [], 
    [ AC_CHECK_LIB(bind, res_query, 
                   [], [ AC_MSG_ERROR(res_query not found) ] ) ] )
  ]
)

ACX_PTHREAD

# If using GCC specify some additional parameters
if test "x$GCC" = "xyes" ; then
   CFLAGS="$CFLAGS -pipe -W -Wall -pedantic"

   AC_LANG_CONFTEST([int main() {}])
   $CC -c conftest.c -std=c99 -Wno-unused-parameter $CFLAGS > /dev/null 2> /dev/null && CFLAGS="$CFLAGS -std=c99 -Wno-unused-parameter"
   rm -f conftest.o
fi

# LYNX documentation generation
AC_ARG_ENABLE(lynx,
        AC_HELP_STRING(--disable-lynx,Turn off lynx usage for documentation generation),
[case "${enableval}" in
  yes) lynx=yes ;;
  no)  lynx=no ;;
  *) AC_MSG_ERROR(bad value ${enableval} for --disable-lynx) ;;
esac],[lynx=yes])

if test x$lynx = xyes ; then
   AC_CHECK_PROG(have_lynx, lynx, yes, no)

   if test x$have_lynx = xno ; then
     AC_MSG_WARN([*** lynx not found, plain text README will not be built ***])
   fi
fi

AM_CONDITIONAL([USE_LYNX], [test "x$lynx" = xyes])

AC_CONFIG_FILES([Makefile libasyncns/Makefile doc/Makefile doc/README.html doxygen/Makefile doxygen/doxygen.conf libasyncns.pc])
AC_OUTPUT