The proposed solution is in the tracker. If this is an autotools based package, and '--disable-silent-rules' doesn't work, you can try to add MAKEOPTS+=" V=1"
fixed in cvs. + 09 Dec 2012; Markus Meier <maekke@gentoo.org> ufraw-0.18.ebuild: + enable verbose build output by Agostino Sarubbo in bug #443000 +