done in the ebuild you'll find this: use qt && ( \ export QTDIR=/usr/qt/2 #hope this helps - danarmak myconf="${myconf} --with-qtdom" ) this will not actually modify the variable myconf outside of the subshell ... i didnt scan the whole ebuild, so i'm not sure if this is the *only* time this happens ...
oh, i forget to mention that this would work: use qt && { myconf="${myconf} blah blah" } notice usage of { } instead of ( ) ...
thanks!