CMakeLists.txt

cmake_minimum_required(VERSION 2.6)

project(yolov5) 

#change to your own path
##################################################
set(OpenCV_DIR "G:\\c++\\paddle_test\\opencv\\build")  
set(TRT_DIR "G:\\c++\\TensorRT-8.2.1.8")  
set(Dirent_INCLUDE_DIRS "G:\\code\\yolov5-6.0\\tensorrt\\include")
##################################################

add_definitions(-std=c++11)
add_definitions(-DAPI_EXPORTS)
option(CUDA_USE_STATIC_CUDA_RUNTIME OFF)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_BUILD_TYPE Debug)

set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads)

# setup CUDA
find_package(CUDA REQUIRED)
message(STATUS "    libraries: ${CUDA_LIBRARIES}")
message(STATUS "    include path: ${CUDA_INCLUDE_DIRS}")
include_directories(${CUDA_INCLUDE_DIRS})
include_directories(${Dirent_INCLUDE_DIRS}) 

#change to your GPU own compute_XX
###########################################################################################
set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};-std=c++11;-g;-G;-gencode;arch=compute_75;code=sm_75)
###########################################################################################

####
enable_language(CUDA)  # add this line, then no need to setup cuda path in vs
####
include_directories(${PROJECT_SOURCE_DIR}/include)
include_directories(${TRT_DIR}\\include)

# -D_MWAITXINTRIN_H_INCLUDED for solving error: identifier "__builtin_ia32_mwaitx" is undefined
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Ofast -D_MWAITXINTRIN_H_INCLUDED")

# setup opencv
find_package(OpenCV QUIET
    NO_MODULE
    NO_DEFAULT_PATH
    NO_CMAKE_PATH
    NO_CMAKE_ENVIRONMENT_PATH
    NO_SYSTEM_ENVIRONMENT_PATH
    NO_CMAKE_PACKAGE_REGISTRY
    NO_CMAKE_BUILDS_PATH
    NO_CMAKE_SYSTEM_PATH
    NO_CMAKE_SYSTEM_PACKAGE_REGISTRY
)

message(STATUS "OpenCV library status:")
message(STATUS "    version: ${OpenCV_VERSION}")
message(STATUS "    libraries: ${OpenCV_LIBS}")
message(STATUS "    include path: ${OpenCV_INCLUDE_DIRS}")

include_directories(${OpenCV_INCLUDE_DIRS})
link_directories(${TRT_DIR}\\lib)

add_executable(yolov5 ${PROJECT_SOURCE_DIR}/yolov5.cpp ${PROJECT_SOURCE_DIR}/yololayer.cu ${PROJECT_SOURCE_DIR}/yololayer.h ${PROJECT_SOURCE_DIR}/preprocess.cu) 

target_link_libraries(yolov5 "nvinfer" "nvinfer_plugin")  
target_link_libraries(yolov5 ${OpenCV_LIBS})     
target_link_libraries(yolov5 ${CUDA_LIBRARIES})  
target_link_libraries(yolov5 Threads::Threads)