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76 lines
2.7 KiB
CMake
76 lines
2.7 KiB
CMake
# - Find R
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# This module finds the libraries corresponding to the R program
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# It is based on the code from http://github.com/usnistgov/REFPROP-wrappers which is in the public domain
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# This code sets the following variables:
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#
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# R_LIBRARY - path to the R shared library
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# R_INCLUDE_DIRS - include directory(ies)
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# R_BIN_DIR - directory that contains the R executable being used
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SET(R_FOUND 0)
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IF( "${R_BIN}" STREQUAL "")
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MESSAGE(FATAL_ERROR "You must pass the CMake variable R_BIN pointing to the directory that contains your executable")
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ENDIF()
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find_program(R_EXEC
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NAMES R
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PATHS ${R_BIN}
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NO_SYSTEM_ENVIRONMENT_PATH
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NO_CMAKE_SYSTEM_PATH
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NO_DEFAULT_PATH
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NO_CMAKE_PATH
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)
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MESSAGE(STATUS "R_EXEC= ${R_EXEC}")
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# Parse the output of the R path commmand, removing whitespace
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FUNCTION(chomp arg1 arg2)
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string(REPLACE "\n" ";" arg1list ${arg1})
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list(GET arg1list 1 arg1line)
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string(LENGTH ${arg1line} len)
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MATH(EXPR length ${len}-6)
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string(SUBSTRING ${arg1line} 5 ${length} arg1path)
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# see http://www.cmake.org/pipermail/cmake/2008-November/025423.html
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set(${arg2} ${arg1path} PARENT_SCOPE)
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ENDFUNCTION(chomp)
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_home.R R.home())
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execute_process(
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COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_home.R OUTPUT_VARIABLE R_HOME_TEXT RESULT_VARIABLE R_HOME_RESULT
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)
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_home.R)
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MESSAGE(STATUS "R_HOME_TEXT = ${R_HOME_TEXT} w/ RESULT=${R_HOME_RESULT}")
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chomp(${R_HOME_TEXT} R_HOME_TEXT)
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_include.R R.home(component=\"include\"))
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execute_process(
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COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_include.R OUTPUT_VARIABLE R_INCLUDE_TEXT RESULT_VARIABLE R_INCLUDE_RESULT
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)
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_include.R)
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chomp(${R_INCLUDE_TEXT} R_INCLUDE_DIRS)
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MESSAGE(STATUS "R_INCLUDE = ${R_INCLUDE_DIRS} w/ RESULT=${R_INCLUDE_RESULT}")
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R R.home(component=\"bin\"))
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execute_process(
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COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R OUTPUT_VARIABLE R_BIN_TEXT RESULT_VARIABLE R_BIN_RESULT
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)
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R)
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chomp(${R_BIN_TEXT} R_BIN_DIR)
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MESSAGE(STATUS "R_BIN_TEXT = ${R_BIN_DIR} w/ RESULT=${R_BIN_RESULT}")
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find_library (
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R_LIBRARY
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R
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PATHS ${R_BIN_DIR} ${R_HOME_TEXT}/lib
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NO_DEFAULT_PATH
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NO_CMAKE_PATH
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)
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MESSAGE(STATUS "R_LIBRARY = ${R_LIBRARY}")
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find_package_handle_standard_args(R DEFAULT_MSG
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R_LIBRARY R_INCLUDE_DIRS)
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MARK_AS_ADVANCED(
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R_BIN_DIR
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R_LIBRARY
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R_INCLUDE_DIRS
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) |