How do I uninstall the GDB debugging tool under the UNIX platform?

A few days ago to install the latest GDB process a little problem, want to uninstall. After the result executes the "make Uninstall" command, the following result appears:

bash-3.2# make Uninstall
The uninstall target isn't supported in

It appears that GDB does not support uninstalling with the "Make Uninstall" command, so how do you uninstall it? I asked in GDB mailing list and received a reply from Doug Evans:

Yikes.

A clumsy workaround are to CDs into each SUBDIR
Make uninstall there.

You can only enter each subdirectory and execute the make uninstall command separately.

Later, in a separate letter, he mentioned that he had submitted a bug to see if anyone would make any improvements.