poet/CMake/FindRRuntime.cmake

78 lines
1.7 KiB
CMake

# prepare R environment (Rcpp + RInside)
find_program(R_EXE "R"
REQUIRED
)
# search for R executable, R header file and library path
execute_process(
COMMAND ${R_EXE} RHOME
OUTPUT_VARIABLE R_ROOT_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
find_path(
R_INCLUDE_DIR R.h
HINTS /usr/include /usr/local/include /usr/share ${R_ROOT_DIR}/include
PATH_SUFFIXES R/include R
REQUIRED
)
find_library(
R_LIBRARY libR.so
HINTS ${R_ROOT_DIR}/lib
REQUIRED
)
set(R_LIBRARIES ${R_LIBRARY})
set(R_INCLUDE_DIRS ${R_INCLUDE_DIR})
# find Rcpp include directory
execute_process(COMMAND Rscript -e "cat(system.file(package='Rcpp'))"
RESULT_VARIABLE RCPP_NOT_FOUND
ERROR_QUIET
OUTPUT_VARIABLE RCPP_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(RCPP_NOT_FOUND)
message(FATAL_ERROR "Rcpp not found!")
endif()
find_path(R_Rcpp_INCLUDE_DIR Rcpp.h
HINTS ${RCPP_PATH}
PATH_SUFFIXES include)
list(APPEND R_INCLUDE_DIRS ${R_Rcpp_INCLUDE_DIR})
# find RInside libraries and include path
execute_process(COMMAND Rscript -e "cat(system.file(package='RInside'))"
RESULT_VARIABLE RINSIDE_NOT_FOUND
ERROR_QUIET
OUTPUT_VARIABLE RINSIDE_PATH
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(RInside_NOT_FOUND)
message(FATAL_ERROR "RInside not found!")
endif()
find_library(R_RInside_LIBRARY libRInside.so
HINTS ${RINSIDE_PATH}/lib)
find_path(R_RInside_INCLUDE_DIR RInside.h
HINTS ${RINSIDE_PATH}
PATH_SUFFIXES include)
list(APPEND R_LIBRARIES ${R_RInside_LIBRARY})
list(APPEND R_INCLUDE_DIRS ${R_RInside_INCLUDE_DIR})
# putting all together into interface library
add_library(RRuntime INTERFACE IMPORTED)
target_link_libraries(RRuntime INTERFACE ${R_LIBRARIES})
target_include_directories(RRuntime INTERFACE ${R_INCLUDE_DIRS})
unset(R_LIBRARIES)
unset(R_INCLUDE_DIRS)