#
# Licensed under the BSD License:
#
# Copyright (c) 2007, Evan Wies
# Copyright (c) 2011, David Love
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in the
#   documentation and/or other materials provided with the distribution.
#
# * Neither the name of the neomantra nor the names of its contributors may
#  be used to endorse or promote products derived from this software without
#  specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY Evan Wies ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL Evan Wies BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#


require 'mkmf'


def fail( str )
  STDERR << " extconf failed: #{str}\n"
  exit 1
end


if enable_config('debug')
    $CFLAGS = '-O0 -g -Wall '
else    
    $CFLAGS = '-O3 -Wall'
end


if enable_config('rlb-debug')
    $CFLAGS += '-DRLB_DEBUG '
end

# link in C++ libraries
$LIBS << " -lstdc++ -lc"

nolua_msg = <<END_OF_MESSAGE
need liblua.

        Install the library or try one of the following options to extconf.rb:

        --with-lua-lib=/path/to/liblua/lib
        --with-lua-include=/path/to/liblua/include
        --with-lualib=name_of_lua_library
        
        --enable-debug will build it optimized and with debugging symbols 
END_OF_MESSAGE


dir_config 'lua'

unless have_header('lua.h')
    fail nolua_msg
end
unless have_library( 'lua', 'lua_pushvalue' )
    fail nolua_msg
end

create_makefile 'rubyluabridge'