CMakeLists.txt

cmake_minimum_required(VERSION 3.0)

project (leopard_tools CXX)

find_package (OpenMP REQUIRED)
find_package (OpenCV REQUIRED)

find_library (V4l2Libs v4l2 REQUIRED)
find_library (udevLibs udev REQUIRED)
find_library (jsoncLibs json-c REQUIRED)



# check c++ compiler flag
include (CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)

# set c++ compiler flag
if(COMPILER_SUPPORTS_CXX11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
elseif(COMPILER_SUPPORTS_CXX0X)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") 
#set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}") 
#set(CMAKE_SHARE_LINKER_FLAGS "${CMAKE_SHARE_LINKER_FLAGS} ${OpenMP_SHARE_LINKER_FLAGS}")

include_directories(
	${OpenCV_INCLUDE_DIRS}
	${GTK3_INCLUDE_DIRS}
)

# find all the files in src directory and save in SRCS 
aux_source_directory(src SRCS)

# create static library
add_library(${PROJECT_NAME}  STATIC
	${SRCS}
)

target_link_libraries(${PROJECT_NAME} 
	${V4l2Libs}
	${udevLibs}
	${jsoncLibs}
	${OpenMP_LIBS}
	${OpenCV_LIBS}
	${GTK3_LIBRARY_DIRS}
)

# default set USE_OPENCV_CUDA off
# use cmake -DUSE_OPENCV_CUDA=ON .. to turn on
option (USE_OPENCV_CUDA 
	"Set to switch to build use OpenCV CUDA" OFF)
if (USE_OPENCV_CUDA)
	add_definitions(-DHAVE_OPENCV_CUDA_SUPPORT)
	message(STATUS "Build with OPENCV_CUDA")
else()
	message(STATUS "Build without OpenCV_CUDA")
endif()

if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})

	find_package (PkgConfig REQUIRED)
	pkg_check_modules (GTK3 REQUIRED gtk+-3.0)

	include_directories(
		${GTK3_INCLUDE_DIRS}
	)

	add_executable(leopard_cam
		test/main.cpp
	)

	target_link_libraries(leopard_cam
		${CMAKE_PROJECT_NAME}
		${V4l2Libs}
		${udevLibs}
		${jsoncLibs}
		${OpenMP_LIBS}
		${OpenCV_LIBS}
		${GTK3_LIBRARIES}
	)


endif(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR})