thats all :)
# emerge -pv util-macros These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild R ] x11-misc/util-macros-1.1.0 USE="-debug" 0 kB # emerge --info | grep FLAGS CFLAGS="-march=athlon-xp -O2 -pipe -fomit-frame-pointer -fforce-addr -ftree-vectorize" CXXFLAGS="-march=athlon-xp -O2 -pipe -fomit-frame-pointer -fforce-addr -ftree-vectorize" LDFLAGS="-Wl,-O1 -Wl,--sort-common" Reopen with some errors and emerge --info.