CMAKE for building Darkent on Linux

CMakeLists.txt

cmake_minimum_required(VERSION 3.15)
set(CMAKE_VERBOSE_MAKEFILE on)
#set (OpenCV_DIR /home/stiv2/opencv-4.1.2/build)
#find_package(OpenCV REQUIRED )

#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-unused-result -Wno-unknown-pragmas -Wfatal-errors -fPIC -Ofast -c ")
project(darknet)

set(CMAKE_CXX_STANDARD 14)
#add_definitions(-DOPENCV=1)

add_executable(darknet  ./src/activation_layer.c            ./src/data.c                   ./src/im2col.c        ./src/logistic_layer.c       ./src/parser.c          ./src/tree.c
        ./src/activations.c       ./src/connected_layer.c      ./src/deconvolutional_layer.c  ./src/image.c         ./src/lstm_layer.c           ./src/region_layer.c    ./src/upsample_layer.c
        ./src/avgpool_layer.c     ./src/convolutional_layer.c  ./src/demo.c                   ./src/iseg_layer.c    ./src/matrix.c               ./src/reorg_layer.c     ./src/utils.c
        ./src/batchnorm_layer.c   ./src/cost_layer.c           ./src/detection_layer.c        ./src/l2norm_layer.c  ./src/maxpool_layer.c        ./src/rnn_layer.c       ./src/yolo_layer.c
        ./src/blas.c              ./src/crnn_layer.c           ./src/dropout_layer.c          ./src/layer.c         ./src/network.c              ./src/route_layer.c
        ./src/box.c               ./src/crop_layer.c           ./src/gemm.c                   ./src/list.c          ./src/normalization_layer.c  ./src/shortcut_layer.c
        ./src/col2im.c            ./src/cuda.c                 ./src/gru_layer.c              ./src/local_layer.c   ./src/option_list.c          ./src/softmax_layer.c
        ./examples/darknet.c  ./examples/yolo.c ./examples/super.c ./examples/go.c ./examples/coco.c
        ./examples/cifar.c ./examples/detector.c ./examples/lsd.c ./examples/rnn.c ./examples/classifier.c
        ./examples/regressor.c ./examples/instance-segmenter.c ./examples/segmenter.c ./examples/art.c
        ./examples/tag.c ./examples/nightmare.c
        )
target_include_directories(darknet PRIVATE ./include)
TARGET_LINK_LIBRARIES(darknet stdc++fs -lpthread -lm )