. Fix the build on 8.x and 9.x by using a static libexecinfo link on them
(not yet verified).
. Remove USE_BZIP2 in favour of USES tar:bzip2
. Fix up some of the Perl script Perl executable usage.
. Set HOME=- to prevent touching .afterstep in /root (suggested by swills@)
. Fix additional packing list problems.
Still need to fix LIB_DEPENDS format and the use of MAN1.