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# Copyright (c) 2003-2009 FlashCode <flashcode@flashtux.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# - 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_EXECUTABLE = full path to the ruby binary
# RUBY_INCLUDE_PATH = path to where ruby.h can be found
# RUBY_LIBRARY = path to where libruby.so* can be found
IF(RUBY_FOUND)
# Already in cache, be silent
SET(RUBY_FIND_QUIETLY TRUE)
ENDIF(RUBY_FOUND)
FIND_PROGRAM(RUBY_EXECUTABLE
NAMES ruby ruby1.9 ruby19 ruby1.8 ruby18 ruby1.6 ruby16
PATHS /usr/bin /usr/local/bin /usr/pkg/bin
)
IF(RUBY_EXECUTABLE)
EXECUTE_PROCESS(
COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['rubyhdrdir'] || Config::CONFIG['archdir']"
OUTPUT_VARIABLE RUBY_ARCH_DIR
)
EXECUTE_PROCESS(
COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['arch']"
OUTPUT_VARIABLE RUBY_ARCH
)
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
)
EXECUTE_PROCESS(
COMMAND ${RUBY_EXECUTABLE} -r rbconfig -e "puts Config::CONFIG['ruby_version']"
OUTPUT_VARIABLE RUBY_VERSION
)
# remove the new lines from the output by replacing them with empty strings
STRING(REPLACE "\n" "" RUBY_ARCH_DIR "${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}")
STRING(REPLACE "\n" "" RUBY_ARCH "${RUBY_ARCH}")
STRING(REPLACE "\n" "" RUBY_VERSION "${RUBY_VERSION}")
FIND_PATH(RUBY_INCLUDE_PATH
NAMES ruby.h
PATHS ${RUBY_ARCH_DIR}
)
SET(RUBY_ARCH
"${RUBY_INCLUDE_PATH}/${RUBY_ARCH}")
FIND_LIBRARY(RUBY_LIBRARY
NAMES ruby ruby1.6 ruby16 ruby1.8 ruby18 ruby1.9 ruby19
PATHS ${RUBY_POSSIBLE_LIB_PATH} ${RUBY_RUBY_LIB_PATH}
)
IF(RUBY_LIBRARY AND RUBY_INCLUDE_PATH)
SET(RUBY_FOUND TRUE)
ENDIF(RUBY_LIBRARY AND RUBY_INCLUDE_PATH)
IF(${RUBY_VERSION} STREQUAL "1.9.0")
SET(RUBY_FOUND FALSE)
ENDIF(${RUBY_VERSION} STREQUAL "1.9.0")
MARK_AS_ADVANCED(
RUBY_EXECUTABLE
RUBY_LIBRARY
RUBY_ARCH
RUBY_INCLUDE_PATH
)
ENDIF(RUBY_EXECUTABLE)
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