svn path=/main/branches/2.1.2/; revision=10672
\fI/usr/portage/profiles\fR.
.TP
.BR CHOST
-The \CHOST\fR variable in \fBmake.conf\fR(5) is used to mask binary packages
-that have been built with a different \CHOST\fR setting. The only
-way to unmask such a binary package is to change the \CHOST\fR environment
-variable so that it exactly matches that of the binary package.
+Use the \fBACCEPT_CHOSTS\fR variable in \fBmake.conf\fR(5) to control
+\fBCHOST\fR acceptance for binary packages.
.TP
.BR EAPI
The \fBEAPI\fR variable in an \fBebuild\fR(5) file is used to mask packages
export USE="\-*"
.SH "VARIABLES"
.TP
+\fBACCEPT_CHOSTS\fR = \fI[space delimited list of CHOST values]\fR
+Specifies acceptable \fBCHOST\fR values for binary packages. Regular
+expression syntax is supported, so it is necessary to escape
+\fBCHOST\fR characters if they have special meaning in regular expressions.
+.br
+Defaults to the value of $CHOST.
+.TP
\fBACCEPT_KEYWORDS\fR = \fI[space delimited list of KEYWORDS]\fR
Enable testing of ebuilds that have not yet been deemed 'stable'. Users
of the 'x86' architecture would set this to '~x86' while ppc users would