opecv opencv-contrib编译

系统环境：

win7 64、mingw、cmake3.9.2、opencv3.3

安装配置mingw和cmake后，查看结果

D:opencv3.3sources>cmake -version
cmake version 3.9.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).

D:opencv3.3sources>make -v
GNU Make 3.82.90
Built for i686-pc-mingw32
Copyright (C) 1988-2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

步骤：

1.下载https://github.com/opencv/opencv

2.下载https://github.com/opencv/opencv_contrib

3.输入命令cmake-gui，分别选择源码目录和编译文件存放目录，如图：

4.点击下方configure按钮，看到configuring done说明配置成功

5.找到BUILD，选择opencv_contrib/modules存放目录，如图，

6.重复步骤4

7.点击Generate按钮，看到Generate Done，至此cmake完成。

8.cd进入mybuild目录，执行make -j4

9.坐等build 100%

10.执行make install 

大功告成。

遇到问题：

C:MinGWinwindres.exe: unknown option -- W

...

v:MinGW-Buildsmingw64inwindres.exe: supported targets: pe-x86-64 pei-x86-64 pe-bigobj-x86-64 elf64-x86-64 elf64-l1om elf64-k1om pe-i386 pei-i386 elf32-i386 elf32-iamcu elf64-little elf64-big elf32-little elf32-big plugin srec symbolsrec verilog tekhex binary ihex
modules/core/CMakeFiles/opencv_core.dir/build.make:1642: recipe for target `modules/core/CMakeFiles/opencv_core.dir/vs_version.rc.obj' failed
make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/vs_version.rc.obj] Error 1
CMakeFiles/Makefile2:1512: recipe for target `modules/core/CMakeFiles/opencv_core.dir/all' failed
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2
Makefile:162: recipe for target `all' failed
make: *** [all] Error 2

经查明是cmake-3.9+版本的bug

解决方法：去掉ENABLE_PRECOMPILED_HEADERS再make如图：

补充：cmake-gui Configure、Generate均是为真正编译make做准备工作。也可以通过cmake -G "MinGW Makefiles".进行配置。