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# - 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) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
# See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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 )
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['archdir']"
OUTPUT_VARIABLE RUBY_ARCH_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['libdir']"
OUTPUT_VARIABLE RUBY_POSSIBLE_LIB_PATH)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['rubylibdir']"
OUTPUT_VARIABLE RUBY_RUBY_LIB_PATH)
# remove the new lines from the output by replacing them with empty strings
STRING(REPLACE "\n" "" RUBY_ARCH_DIR "${RUBY_ARCH_DIR}")
STRING(REPLACE "\n" "" RUBY_POSSIBLE_LIB_PATH "${RUBY_POSSIBLE_LIB_PATH}")
STRING(REPLACE "\n" "" RUBY_RUBY_LIB_PATH "${RUBY_RUBY_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 ruby1.8
PATHS ${RUBY_POSSIBLE_LIB_PATH}
)
MARK_AS_ADVANCED(
RUBY_EXECUTABLE
RUBY_LIBRARY
RUBY_INCLUDE_PATH
)
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