poet/CMake/FindRRuntime.cmake
2022-11-10 15:38:38 +01:00

90 lines
2.0 KiB
CMake

# prepare R environment (Rcpp + RInside)
find_program(R_EXE "R")
# search for R executable, R header file and library path
if(R_EXE)
execute_process(
COMMAND ${R_EXE} RHOME
OUTPUT_VARIABLE R_ROOT_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
find_path(
R_INCLUDE_DIR R.h
HINTS ${R_ROOT_DIR}
PATHS /usr/inlcude /usr/local/include /usr/share
PATH_SUFFIXES include/R R/include
)
find_library(
R_LIBRARY R
HINTS ${R_ROOT_DIR}/lib
)
else()
message(FATAL_ERROR "No R runtime found!")
endif()
mark_as_advanced(R_INCLUDE_DIR R_LIBRARY R_EXE)
set(R_LIBRARIES ${R_LIBRARY})
set(R_INCLUDE_DIRS ${R_INCLUDE_DIR})
# find Rcpp include directory
execute_process(COMMAND echo "cat(find.package('Rcpp'))"
COMMAND ${R_EXE} --vanilla --slave
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)
mark_as_advanced(R_Rcpp_INCLUDE_DIR)
list(APPEND R_INCLUDE_DIRS ${R_Rcpp_INCLUDE_DIR})
# find RInside libraries and include path
execute_process(COMMAND echo "cat(find.package('RInside'))"
COMMAND ${R_EXE} --vanilla --slave
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 ${R_RInside_INCLUDE_DIR})
mark_as_advanced(R_RInside_LIBRARY R_RInside_INCLUDE_DIR)
# putting all together into interface library
add_library(RRuntime INTERFACE IMPORTED)
set_target_properties(
RRuntime PROPERTIES
INTERFACE_LINK_LIBRARIES "${R_LIBRARIES}"
INTERFACE_INCLUDE_DIRECTORIES "${R_INCLUDE_DIRS}"
)
unset(R_LIBRARIES)
unset(R_INCLUDE_DIRS)