全部。从源代码构建OpenCV 3.1时遇到问题。
[ 7%] Generating opencv_flann_pch_dephelp.cxx
/usr/bin/x86_64-linux-gnu-ld: not found -l64
/usr/bin/x86_64-linux-gnu-ld: not found -l64
collect2: error: ld returned 1 exit status
modules/cudev/CMakeFiles/opencv_cudev.dir/build.make:95: recipe for target 'lib/libopencv_cudev.so.3.1.0' failed
make[2]: *** [lib/libopencv_cudev.so.3.1.0] Error 1
CMakeFiles/Makefile2:1291: recipe for target 'modules/cudev/CMakeFiles/opencv_cudev.dir/all' failed
make[1]: *** [modules/cudev/CMakeFiles/opencv_cudev.dir/all] Error 2
我可以找到/usr/bin/x86_64-linux-gnu-ld: not found -l64但找不到-l64吗？什么是-l64？