[原创]opencv学习之ARM交叉编译

刚成功用交叉工具链编译了opencv2.4.0分享一下。

1. sudo cmake-gui ，选这Unix Makefiles
配置如下图








应该注意的是，在默认配置的基础上。去掉 WITH_TIFF这个选项。





Generate一下，OK 了，
进入makefile的目录
sudo make
过程很漫长，如果出现下面的错误

Linking CXX executable
../../bin/opencv_test_calib3d

../../lib/libopencv_core.so: undefined reference to
`pthread_key_create'

../../lib/libopencv_core.so: undefined reference to
`pthread_getspecific'

../../lib/libopencv_ts.so: undefined reference to
`pthread_key_delete'

../../lib/libopencv_core.so: undefined reference to
`pthread_once'

../../lib/libopencv_core.so: undefined reference to
`clock_gettime'

../../lib/libopencv_core.so: undefined reference to
`pthread_setspecific'

collect2: ld returned 1 exit status

make[2]: *** [bin/opencv_test_calib3d] Error 1

make[1]: ***
[modules/calib3d/CMakeFiles/opencv_test_calib3d.dir/all] Error
2

make: *** [all] Error 2

解决方案：gedit CMakeCache.txt
,修改目录下的CMakeCache.txt，CMAKE_EXE_LINKER_FLAGS原来为空，加上-lpthread
-lrt，如下图：




成功编译后，make install ，这不步，看你的爱好啦，非必须。
如下图，进入lib目录就可以看到编译好了的库文件了