How to uninstall wxWidgets

Removing packages

If you installed wx through your distro's packages (rpm, deb, tgz, ebuild...) just uninstall it normally.

Uninstalling from sources

If you compiled wx on your own, go to the sources directory and tun make uninstall (as root).
If you deleted the sources directory, you can download it again, run configure and then run make uninstall (again, as root).

Forcing wx out of the system

Last, the quick'n'dirty [deltaHF (TM)] way (only to be used if the above two failed):

rm -f /usr/bin/wx*
rm -f /usr/local/bin/wx*
rm -rf /usr/share/locale
rm -f /usr/local/lib/libwx*
rm -rf /usr/local/lib/wx
ldconfig