No open bugs, in portage since 30th may, should be okay for stabilization.
amd64 ok but no RDEPENDS in tree (*)econf not needs die
Tested on x86, all good here ...
Arch tested x86: Everything fine
+ 26 Aug 2011; Tony Vroon <chainsaw@gentoo.org> crf++-0.54.ebuild: + Marked stable on AMD64 based on arch testing by Agostino "ago" Sarubbo in bug + #380561 filed by Hanno Boeck.
x86 stable, thanks David and JD