WRKSRC. LIBTOOL_OVERRIDE defaults to "libtool */libtool and */*/libtool,"
meaning that, in most packages, there's no need to set it.
So: Nuke tons of LIBTOOL_OVERRIDE=${WRKSRC} and adjust a few
SHLIBTOOL_OVERRIDEs (remove ${WRKSRC} from them).
protocols popular in Poland (but not only). This is a plugin based
application, even GUI (which uses GTK+) is a plugin. Currently we support:
Gadu-Gadu, Tlen.pl, Jabber.
