#!/bin/bash

CBUILD=$(portageq envvar CHOST)

if [ -z "$SYSROOT" ]; then
   SYSROOT="/usr/i686-pc-linux-gnu"
   export SYSROOT
fi

CHOST="i686-pc-linux-gnu"
CTARGET="i686-pc-linux-gnu"
PORTAGE_CONFIGROOT="$SYSROOT"
if [[ "$1" == "--root" ]] ; then
    ROOT="$2"
    shift 2
else
    ROOT="$SYSROOT"
fi
export CBUILD PORTAGE_CONFIGROOT ROOT CTARGET CHOST
echo $CBUILD $PORTAGE_CONFIGROOT $ROOT $CTARGET $CHOST

emerge $*


=== Error ===

eagle i686-pc-linux-gnu # ./xmerge -vp mozilla-firefox-bin gnome openoffice
x86_64-pc-linux-gnu /usr/i686-pc-linux-gnu/ /usr/i686-pc-linux-gnu/ i686-pc-linux-gnu i686-pc-linux-gnu

These are the packages that would be merged, in order:

Calculating dependencies \
!!! All ebuilds that could satisfy "~sys-libs/com_err-1.40.2" have been masked.
!!! One of the following masked packages is required to complete your request:
- sys-libs/com_err-1.40.2 (masked by: ~amd64 keyword)

For more information, see MASKED PACKAGES section in the emerge man page or 
refer to the Gentoo Handbook.
(dependency required by "sys-fs/e2fsprogs-1.40.2" [ebuild])

eagle i686-pc-linux-gnu #