# - Find Ruby
# This module finds if Ruby is installed and determines where the include files
# and libraries are. It also determines what the name of the library is. This
# code sets the following variables:
#
#  RUBY_INCLUDE_PATH = path to where ruby.h can be found
#  RUBY_EXECUTABLE   = full path to the ruby binary
#
# Copyright (c) 2006, Laurent Montel, <montel@kde.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.


if(RUBY_LIBRARY AND RUBY_INCLUDE_PATH)
   # Already in cache, be silent
   set(RUBY_FIND_QUIETLY TRUE)
endif (RUBY_LIBRARY AND RUBY_INCLUDE_PATH)		

#   RUBY_ARCHDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"archdir"@:>@)'`
#   RUBY_SITEARCHDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"sitearchdir"@:>@)'`
#   RUBY_SITEDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"sitelibdir"@:>@)'`
#   RUBY_LIBDIR=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"libdir"@:>@)'`
#   RUBY_LIBRUBYARG=`$RUBY -r rbconfig -e 'printf("%s",Config::CONFIG@<:@"LIBRUBYARG_SHARED"@:>@)'`

FIND_PROGRAM(RUBY_EXECUTABLE NAMES ruby ruby1.8 ruby18 )

EXEC_PROGRAM(${RUBY_EXECUTABLE} ARGS -r rbconfig -e 'puts Config::CONFIG[\"archdir\"]'
   OUTPUT_VARIABLE RUBY_ARCH_DIR)

EXEC_PROGRAM(${RUBY_EXECUTABLE} ARGS -r rbconfig -e 'puts Config::CONFIG["libdir"]'
   OUTPUT_VARIABLE RUBY_POSSIBLE_LIB_PATH)

FIND_PATH(RUBY_INCLUDE_PATH 
   NAMES ruby.h
   PATHS 
   ${RUBY_ARCH_DIR}
  /usr/lib/ruby/1.8/i586-linux-gnu/ )

FIND_LIBRARY(RUBY_LIBRARY
  NAMES ruby
  PATHS ${RUBY_POSSIBLE_LIB_PATH}
  )

MARK_AS_ADVANCED(
  RUBY_EXECUTABLE
  RUBY_LIBRARY
  RUBY_INCLUDE_PATH
  )