Created attachment 441234 [details] emerge --info When I emerge tinc-1.1 with USE=upnp, currently it does not activate the upnp functionality in the package. The ebuild uses the configure argument $(use_with upnp miniupnpc) but the configure script expects: --enable-miniupnpc see configure.ac:247 : tinc_MINIUPNPC AM_CONDITIONAL(MINIUPNPC, test "x$enable_miniupnpc" = "xyes") after changing the ebuild to use $(use_enable upnp miniupnpc) the functionality is correctly compiled in.
thanks for reporting, I've pushed this fix without revision bump https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2b2a76fd22d1521b5fe4c079b87f2a0c82da874e