No rule to make target `/usr/lib64/libQtWebKit_debug.so

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It looks like CMake generated Make code which used /usr/lib64/libQtWebKit_debug.so as a target dependency and that since generating that Make code, that file has moved or no longer exists? I think this because typically the No rule to make target error results from a missing file that you are expecting to be there (especially since the file is obviously not built by your package). Have you tried removing your build space and building from scratch or at least passing --force-cmake to catkin_make?

Have you just double checked that the file is there? I know yum says it is, but make sure it isn't a dangling symbolic link or something of that nature.

I'll point out that this doesn't really look like a ROS or catkin issue, it appears to be solely a using Qt with CMake problem. If you don't find you answer here you might consider trying to narrow it down to a simple CMake example (without catkin) and posting to stackoverflow or something similar.