Build log should always be verbose as per talk on dev-ML, please force it until some EAPI includes a fix for this. Other versions might be affected as well. linker lines are hidden behind CCLD
Created attachment 320358 [details] udev-171-r6:20120608-200243.log
obsolete by http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=1cc39de72ac5311db748341ef9183586556719d9
is confirmed in sys-fs/udev-197-r2
+ 18 Jan 2013; Samuli Suominen <ssuominen@gentoo.org> udev-197-r3.ebuild, + udev-9999.ebuild: + Pass --disable-silent-rules wrt #429886 by Julian Ospald