required by gcc-4.4 stabilization. also, make sure your stable version of dev-libs/dvthread, dev-libs/dvssl, dev-libs/dvnet compiles against it, if not, stabilize latest of those too
dev-libs/dvnet-0.9.21 "ppc x86"
dev-libs/dvssl-0.6.1 "ppc x86"
dev-libs/dvthread-0.13.4 "ppc x86"
dev-libs/dvutil-1.0.10 "ppc sparc x86"
Nothing for amd64 here, no previous stable, no stable now
sparc doesn't need dvutil stable, unnecessary burden at this time (no reverse dependencies).