from the ebuild: src_install() { addwrite /usr/share/ if the package is so broken you need to do that, dont add it to the tree, or install the package with a bunch of do{ins,bin,exe}, etc...
Was this xwine removed from the tree? (the only xwine i can find is in app-emulation) Can this be closed?
Closing. The ebuild was app-emulation/XWine-0.32 and is gone, replaced by app-emulation/xwine.