you have compiled wxWidgets in some path which is not in the libary path of your system, I would assume since you only specified wxBase config, which was btw useless.. its in /usr/local/lib/
the wxBase is useless since its not used with wx-2.5 and higher, wxBase is included in wxGTK from there on, you only need wxBase with wxGTK-2.4
and the backwards compatibility does not hurt....
so can you add
/usr/local/lib/
to
/etc/ld.so.conf
and run
/sbin/ldconfig
and restart amule