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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
# RUBY_LIBRARY = full path to the ruby library
# Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
# See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
# 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 ruby1.9 ruby19)
IF(RUBY_EXECUTABLE AND NOT RUBY_ARCH_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['archdir']"
OUTPUT_VARIABLE RUBY_ARCH_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['libdir']"
OUTPUT_VARIABLE RUBY_POSSIBLE_LIB_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['rubylibdir']"
OUTPUT_VARIABLE RUBY_RUBY_LIB_DIR)
# site_ruby
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['sitearchdir']"
OUTPUT_VARIABLE RUBY_SITEARCH_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['sitelibdir']"
OUTPUT_VARIABLE RUBY_SITELIB_DIR)
# vendor_ruby available ?
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r vendor-specific -e "print 'true'"
OUTPUT_VARIABLE RUBY_HAS_VENDOR_RUBY ERROR_QUIET)
IF(RUBY_HAS_VENDOR_RUBY)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['vendorlibdir']"
OUTPUT_VARIABLE RUBY_VENDORLIB_DIR)
EXECUTE_PROCESS(COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "print Config::CONFIG['vendorarchdir']"
OUTPUT_VARIABLE RUBY_VENDORARCH_DIR)
ENDIF(RUBY_HAS_VENDOR_RUBY)
# save the results in the cache so we don't have to run ruby the next time again
SET(RUBY_ARCH_DIR ${RUBY_ARCH_DIR} CACHE PATH "The Ruby arch dir")
SET(RUBY_POSSIBLE_LIB_DIR ${RUBY_POSSIBLE_LIB_DIR} CACHE PATH "The Ruby lib dir")
SET(RUBY_RUBY_LIB_DIR ${RUBY_RUBY_LIB_DIR} CACHE PATH "The Ruby ruby-lib dir")
SET(RUBY_SITEARCH_DIR ${RUBY_SITEARCH_DIR} CACHE PATH "The Ruby site arch dir")
SET(RUBY_SITELIB_DIR ${RUBY_SITELIB_DIR} CACHE PATH "The Ruby site lib dir")
SET(RUBY_HAS_VENDOR_RUBY ${RUBY_HAS_VENDOR_RUBY} CACHE BOOL "Vendor Ruby is available")
SET(RUBY_VENDORARCH_DIR ${RUBY_VENDORARCH_DIR} CACHE PATH "The Ruby vendor arch dir")
SET(RUBY_VENDORLIB_DIR ${RUBY_VENDORLIB_DIR} CACHE PATH "The Ruby vendor lib dir")
ENDIF(RUBY_EXECUTABLE AND NOT RUBY_ARCH_DIR)
# for compatibility
SET(RUBY_POSSIBLE_LIB_PATH ${RUBY_POSSIBLE_LIB_DIR})
SET(RUBY_RUBY_LIB_PATH ${RUBY_RUBY_LIB_DIR})
FIND_PATH(RUBY_INCLUDE_PATH
NAMES ruby.h
PATHS
${RUBY_ARCH_DIR}
/usr/lib/ruby/1.8/i586-linux-gnu/ )
# search the ruby library, the version for MSVC can have the "msvc" prefix and the "static" suffix
FIND_LIBRARY(RUBY_LIBRARY
NAMES ruby ruby1.8 ruby1.9
msvcrt-ruby18 msvcrt-ruby19 msvcrt-ruby18-static msvcrt-ruby19-static
PATHS ${RUBY_POSSIBLE_LIB_DIR}
)
MARK_AS_ADVANCED(
RUBY_EXECUTABLE
RUBY_LIBRARY
RUBY_INCLUDE_PATH
RUBY_ARCH_DIR
RUBY_POSSIBLE_LIB_DIR
RUBY_RUBY_LIB_DIR
RUBY_SITEARCH_DIR
RUBY_SITELIB_DIR
RUBY_HAS_VENDOR_RUBY
RUBY_VENDORARCH_DIR
RUBY_VENDORLIB_DIR
)
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