Files
CoolProp/dev/cmake/Modules/FindR.cmake

94 lines
3.1 KiB
CMake

# - Find R
# This module finds the libraries corresponding to the R program
# It is based on the code from http://github.com/usnistgov/REFPROP-wrappers which is in the public domain
# This code sets the following variables:
#
# R_LIBRARY - path to the R shared library
# R_INCLUDE_DIRS - include directory(ies)
# R_BIN_DIR - directory that contains the R executable being used
SET(R_FOUND 0)
IF( "${R_BIN}" STREQUAL "")
MESSAGE(FATAL_ERROR "You must pass the CMake variable R_BIN pointing to the directory that contains your executable")
ENDIF()
find_program(R_EXEC
NAMES R
PATHS ${R_BIN}
NO_SYSTEM_ENVIRONMENT_PATH
NO_CMAKE_SYSTEM_PATH
NO_DEFAULT_PATH
NO_CMAKE_PATH
)
IF( "${R_EXEC}" STREQUAL "R_EXEC-NOTFOUND")
MESSAGE(FATAL_ERROR "The executable R could not be found in the folder ${R_BIN}")
ENDIF()
MESSAGE(STATUS "R_EXEC= ${R_EXEC}")
# Parse the output of the R path command, removing whitespace
FUNCTION(chomp arg1 arg2)
string(REPLACE "\n" ";" arg1list ${arg1})
list(GET arg1list 1 arg1line)
string(LENGTH ${arg1line} len)
MATH(EXPR length ${len}-6)
string(SUBSTRING ${arg1line} 5 ${length} arg1path)
# see http://www.cmake.org/pipermail/cmake/2008-November/025423.html
set(${arg2} ${arg1path} PARENT_SCOPE)
ENDFUNCTION(chomp)
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_home.R R.home())
execute_process(
COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_home.R OUTPUT_VARIABLE R_HOME_TEXT RESULT_VARIABLE R_HOME_RESULT
)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_home.R)
MESSAGE(STATUS "R_HOME_TEXT = ${R_HOME_TEXT} w/ RESULT=${R_HOME_RESULT}")
chomp(${R_HOME_TEXT} R_HOME_TEXT)
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_include.R R.home(component=\"include\"))
execute_process(
COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_include.R OUTPUT_VARIABLE R_INCLUDE_TEXT RESULT_VARIABLE R_INCLUDE_RESULT
)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_include.R)
chomp(${R_INCLUDE_TEXT} R_INCLUDE_DIRS)
MESSAGE(STATUS "R_INCLUDE = ${R_INCLUDE_DIRS} w/ RESULT=${R_INCLUDE_RESULT}")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R R.home(component=\"bin\"))
execute_process(
COMMAND ${R_EXEC} --quiet -f ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R OUTPUT_VARIABLE R_BIN_TEXT RESULT_VARIABLE R_BIN_RESULT
)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/get_bin.R)
chomp(${R_BIN_TEXT} R_BIN_DIR)
MESSAGE(STATUS "R_BIN_TEXT = ${R_BIN_DIR} w/ RESULT=${R_BIN_RESULT}")
if (WIN32)
# Bug in cmake 3.17, need to search for file rather than library
find_file(
R_LIBRARY
NAMES R.dll
PATHS ${R_BIN_DIR}
NO_DEFAULT_PATH
)
else()
set(R_PATH_LOC "${R_HOME_TEXT}/lib")
MESSAGE(STATUS "R_PATH_LOC = ${R_PATH_LOC}")
find_library(
R_LIBRARY
NAMES R
PATHS ${R_PATH_LOC}
NO_DEFAULT_PATH
#NO_CMAKE_PATH
)
endif()
MESSAGE(STATUS "R_LIBRARY = ${R_LIBRARY}")
find_package_handle_standard_args(R DEFAULT_MSG
R_LIBRARY R_INCLUDE_DIRS)
MARK_AS_ADVANCED(
R_BIN_DIR
R_LIBRARY
R_INCLUDE_DIRS
)