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).
qn-x11 is a GTK theme-engine to improve the boring GTK+ look and feel
with a QNX(tm) look and feel.
This was supplied in pkg/18158 by Miguel Mendez <flynn@energyhq.homeip.net>.
The PR can be closed when this is imported in pkgsrc.