msys2 64 configuration with opencv and dlib
1. download and install
1.1 binary installation(install all the tool chain and lib with pacman):
source: http://www.msys2.org/
package: http://repo.msys2.org/distrib/x86_64/msys2-x86_64-20180531.exe
refercence: https://www.cnblogs.com/findumars/p/6360852.html
1.2 green file installaiton(the dlib is installed in the green package):
package(1): https://download.csdn.net/download/k_shmily/11127711
package(2): https://download.csdn.net/download/k_shmily/11127681
package(3): https://download.csdn.net/download/k_shmily/11127153
2. install the opencv343 for green file installation
2.1 download the opencv and related dependeny package
https://download.csdn.net/download/k_shmily/11159080
2.2 unzip all the pkg files into path "d:\msys64\var\cache\pacman\pkg"
2.3 run the install command
$ cd /c/msys64/var/cache/pacman/pkg/
...
$ pacman -U mingw-w64-x86_64-opencv-3.4.3-2-any.pkg.tar.xz
...
resolving dependencies...
looking for conflicting packages...
Packages (9) mingw-w64-x86_64-freeglut-3.0.0-4 mingw-w64-x86_64-ilmbase-2.3.0-1
mingw-w64-x86_64-intel-tbb-1~2019_20181003-1 mingw-w64-x86_64-jasper-2.0.16-1
mingw-w64-x86_64-libtiff-4.0.10-1 mingw-w64-x86_64-libwebp-1.0.2-1
mingw-w64-x86_64-openexr-2.3.0-1 mingw-w64-x86_64-protobuf-3.7.1-1
mingw-w64-x86_64-opencv-3.4.3-2
Total Installed Size: 171.90 MiB
:: Proceed with installation? [Y/n] y
(9/9) checking keys in keyring [###############################] 100%
(8/9) checking package integrity [###############################] 100%
(8/9) loading package files [###############################] 100%
(9/9) checking for file conflicts [###############################] 100%
(9/9) checking available disk space [###############################] 100%
:: Processing package changes...
(1/9) installing mingw-w64-x86_64-intel-tbb [###############################] 100%
(2/9) installing mingw-w64-x86_64-freeglut [###############################] 100%
(3/9) installing mingw-w64-x86_64-jasper [###############################] 100%
(4/9) installing mingw-w64-x86_64-libtiff [###############################] 100%
(5/9) installing mingw-w64-x86_64-libwebp [###############################] 100%
(6/9) installing mingw-w64-x86_64-ilmbase [###############################] 100%
(7/9) installing mingw-w64-x86_64-openexr [###############################] 100%
(8/9) installing mingw-w64-x86_64-protobuf [###############################] 100%
(9/9) installing mingw-w64-x86_64-opencv [###############################] 100%
Optional dependencies for mingw-w64-x86_64-opencv
mingw-w64-x86_64-eigen3
mingw-w64-x86_64-ffmpeg: support to read and write video files
mingw-w64-x86_64-python2-numpy: Python 2.x interface
mingw-w64-x86_64-python3-numpy: Python 3.x interface
mingw-w64-x86_64-hdf5: opencv_hdf module
mingw-w64-x86_64-tesseract-ocr: opencv_text module
3 questions
3.1 win10环境中，MSYS64 中利用pacman安装dlib后，在使用find_package导入dlib库时，出现如下问题(找不到头文件路径、无法链接到相关的依赖库)：
CMake Error in test/dlibTest/CMakeLists.txt:
Imported target "dlib::dlib" includes non-existent path
"/mingw64/include"
in its INTERFACE_INCLUDE_DIRECTORIES. Possible reasons include:
* The path was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and references files it does not
provide.解决方法：将文件MSYS中的dlib.cmake中的Linux路径修改为window绝对路径
修改前：
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include;/mingw64/include;/mingw64/include;/mingw64/include"
INTERFACE_LINK_LIBRARIES "ws2_32;winmm;comctl32;gdi32;imm32;/mingw64/lib/libgif.dll.a;/mingw64/lib/libpng.dll.a;/mingw64/lib/libz.dll.a;/mingw64/lib/libjpeg.dll.a;-lcblas;-llapack;/mingw64/lib/libsqlite3.dll.a;/mingw64/lib/libfftw3.dll.a"
修改后：
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include;c:/msys64/mingw64/include"
INTERFACE_LINK_LIBRARIES "ws2_32;winmm;comctl32;gdi32;imm32;c:/msys64/mingw64/lib/libgif.dll.a;c:/msys64/mingw64/lib/libpng.dll.a;c:/msys64/mingw64/lib/libz.dll.a;c:/msys64/mingw64/lib/libjpeg.dll.a;-lcblas;-llapack;c:/msys64/mingw64/lib/libsqlite3.dll.a;c:/msys64/mingw64/lib/libfftw3.dll.a"