For example, _portdir function definition in current stable(20101217-r1) is: _portdir() { ( source /usr/share/portage/config/make.globals 2>/dev/null source /etc/make.conf 2>/dev/null echo ${PORTDIR} if [[ $1 == '-o' ]] ; then echo ${PORTDIR_OVERLAY} fi ) } when in current unstable(20121024) it is: _portdir() { ( source /usr/share/portage/config/make.globals 2>/dev/null source /etc/make.conf 2>/dev/null source /etc/portage/make.conf 2>/dev/null echo ${PORTDIR} if [[ $1 == '-o' ]] ; then echo ${PORTDIR_OVERLAY} fi ) } My suggestion: stabilize latest version
Stable for HPPA.
amd64 stable
ppc stable
arm stable
ppc64 stable
alpha stable
x86 stable
ia64 stable