dnl 
dnl   Copyright 2001-2008 Adrian Thurston <thurston@complang.org>
dnl

dnl   This file is part of Colm.
dnl  
dnl   Colm 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   Colm 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 Colm; if not, write to the Free Software
dnl   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
  
AC_INIT(colm/main.cpp)
AC_CONFIG_HEADER(colm/config.h)

dnl Set to true if build system should generate parsers from ragel, kelbt, and
dnl gperf sources. Set to false if generated files are included and not to be
dnl built (production).
AC_SUBST(BUILD_PARSERS,true)

dnl Checks for programs.
AC_PROG_CC
AC_DEFINE_UNQUOTED(CC,$CC)

dnl Checks for programs.
AC_PROG_CXX
AC_DEFINE_UNQUOTED(CXX,$CXX)

dnl Set test on c++ compiler.
AC_LANG_CPLUSPLUS

dnl Check for definition of MAKE.
AC_PROG_MAKE_SET

# Logging features
# AC_ARG_ENABLE(log, "turn on logging", AC_DEFINE(COLM_LOG))
# AC_ARG_ENABLE(log-bytecode, "turns on bytecode logging", AC_DEFINE(COLM_LOG_BYTECODE))
# AC_ARG_ENABLE(log-parse, "turns on parse logging", AC_DEFINE(COLM_LOG_PARSE))
# AC_ARG_ENABLE(log-match, "turns on match logging", AC_DEFINE(COLM_LOG_MATCH))
# AC_ARG_ENABLE(log-compile, "turns on compile logging", AC_DEFINE(COLM_LOG_COMPILE))

if test $BUILD_PARSERS = true; then

dnl Check for Ragel
AC_CHECK_PROG(RAGEL, ragel, ragel)
if test -z "$RAGEL"; then
	echo
	echo "error: ragel is required to build the parsers"
	echo
	exit 1
fi

dnl Check for Kelbt
AC_CHECK_PROG(KELBT, kelbt, kelbt)
if test -z "$KELBT"; then
	echo
	echo "error: kelbt is required to build the parsers"
	echo
	exit 1
fi

fi # BUILD_PARSERS

dnl write output files
AC_OUTPUT(Makefile colm/Makefile)

echo "configuration of colm complete"