Build Dlib on Windows

[Windows 10] Set up environment for Opencv4.0.1 C++ development

• Install Visual Studio 2019
• Install CMake
• Run install script below

git clone https://github.com/davisking/dlib.git dlib-19.17
cd dlib-19.17
git checkout tags/v19.17
mkdir build
cd build
cmake -G "Visual Studio 16 2019" -A x64 \
-DJPEG_INCLUDE_DIR=..\dlib\external\libjpeg \
-DJPEG_LIBRARY=..\dlib\external\libjpeg \
-DPNG_PNG_INCLUDE_DIR=..\dlib\external\libpng \
-DPNG_LIBRARY_RELEASE=..\dlib\external\libpng \
-DZLIB_INCLUDE_DIR=..\dlib\external\zlib \
-DZLIB_LIBRARY_RELEASE=..\dlib\external\zlib \
-DCMAKE_INSTALL_PREFIX=install ..
cmake --build . --config Debug --target INSTALL

• Generate makefile successfully

• Build install successfully

Now you get a dlib_DIR for CMakeLists.txt

dlib_DIR=D:\_Program Files\dlib-19.17\build\install\lib\cmake\dlib