what different between "~x86" and "x86"

[druggo]

the full is :
ACCEPT_KEYWORDS="~x86" and ACCEPT_KEYWORDS="x86"

"~x86" I take ,but
emerge stopped by some system bell when compile these
coreutils-5.0.tar.bz2
coreutils-gentoo-1.7.tar.bz2

when I take "x86" ,everyting ok , but why ?

[siti]

ACCEPT_KEYWORDS="~x86" makes it accept unstable packages so that is why you are getting problem with it. ACCEPT_KEYWORDS="x86" makes it only accept stable packages so no ebuilds should stuff up:)