Without this patch the following will happen:
Error: /usr/local/lib/libpocl.so.1.6.0 is linked to /usr/local/lib/libtinfo.so.6 from devel/ncurses but it is not declared as a dependency
Warning: you need LIB_DEPENDS+=libtinfo.so:devel/ncurses
I'm not completly sure but I believe USES=ncurses should be used instead?