CMakeLists.txt for Rcpp Package Project

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(RcppPackage)
find_package(LibR)
if(${LIBR_FOUND})
else()
  message(FATAL_ERROR "No R...")
endif()
message(STATUS ${CMAKE_SOURCE_DIR})
execute_process(
    COMMAND ${LIBR_EXECUTABLE} "--slave" "-e" "stopifnot(require('Rcpp'));cat(Rcpp:::Rcpp.system.file('include'))"
    OUTPUT_VARIABLE LIBRCPP_INCLUDE_DIRS
    ) 
include_directories(BEFORE ${LIBR_INCLUDE_DIRS})
message(STATUS ${LIBR_INCLUDE_DIRS})
include_directories(BEFORE ${LIBRCPP_INCLUDE_DIRS})
message(STATUS ${LIBRCPP_INCLUDE_DIRS})
add_custom_target(RcppPackage ALL
	COMMAND find ${CMAKE_SOURCE_DIR} -name "*.o" -exec rm "{}" "\;"
	COMMAND find ${CMAKE_SOURCE_DIR} -name "*.so" -exec rm "{}" "\;"
	COMMAND ${LIBR_EXECUTABLE} "--slave" "-e" "\"stopifnot(require(roxygen2));roxygenize('${CMAKE_SOURCE_DIR}',roclets=c('rd','collate','namespace'))\""
	COMMAND ${LIBR_EXECUTABLE} CMD INSTALL "${CMAKE_SOURCE_DIR}")