cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

set (CMAKE_POSITION_INDEPENDENT_CODE TRUE)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)

project(point-process CXX)

set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
set(EXTERNAL_LIBS_ROOT "" CACHE PATH "Path to external library folder (Provide for convience on Windows)")

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

if (NOT CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Type of build" FORCE)
endif()


if(NOT WIN32)
set(CMAKE_CXX_FLAGS "-std=c++11 -Wreturn-type" ${CMAKE_CXX_FLAGS})
else()
add_definitions(-DNOMINMAX)
endif()

option(LAS_SUPPORT "Use libLAS and laszip to enable LAS/LAZ file reading" ON)
option(GDAL_SUPPORT "Use GDAL to load/write DEMs and performance coordinate transforms" ON)

if (EXTERNAL_LIBS_ROOT)
	set(BOOST_ROOT ${EXTERNAL_LIBS_ROOT})
  find_path(GDAL_INCLUDE_DIR NAMES gdal.h PATHS ${EXTERNAL_LIBS_ROOT}/include)
  find_library(GDAL_LIBRARY NAMES gdal_i gdal PATHS ${EXTERNAL_LIBS_ROOT}/lib)
endif()

if (GDAL_SUPPORT)
	find_package(GDAL)
	include_directories(${GDAL_INCLUDE_DIRS})

	add_definitions(-DGDAL_SUPPORT)
endif()


if (LAS_SUPPORT)
	add_definitions(-DLAS_SUPPORT)
	find_path(libLAS_INCLUDE_FILE NAMES liblas.hpp PATHS /usr/local/include/liblas ${EXTERNAL_LIBS_ROOT}/include/liblas)
	get_filename_component(libLAS_INCLUDE_DIRS ${libLAS_INCLUDE_FILE} DIRECTORY)
	find_library(libLAS_LIBRARIES NAMES las liblas PATHS ${EXTERNAL_LIBS_ROOT}/lib)

	if (EXTERNAL_LIBS_ROOT)
		find_path(GDAL_INCLUDE_DIR NAMES gdal.h PATHS ${EXTERNAL_LIBS_ROOT}/include)
		find_library(GDAL_LIBRARY NAMES gdal_i gdal PATHS ${EXTERNAL_LIBS_ROOT}/lib)
	endif()

	find_package(Boost REQUIRED COMPONENTS filesystem) # Required by liblas

	link_directories(${Boost_LIBRARY_DIRS})
	include_directories(${libLAS_INCLUDE_DIRS})

	include_directories(${Boost_INCLUDE_DIRS})
endif()

set(JSON_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/external/json)
include_directories(${JSON_INCLUDE_DIR})
add_subdirectory(external)
include_directories("./include")
include_directories("./external")


add_subdirectory("./lib")
add_subdirectory("./src")
add_subdirectory("./test")


export(TARGETS core-lib tinyxml jsoncpp FILE point-process-targets.cmake)
configure_file(point-process-config.cmake.in "${PROJECT_BINARY_DIR}/point-process-config.cmake" @ONLY)
export(PACKAGE point-process)