This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
later at pkg_delete time to verify that you're deleting what you added.
This, of course, does NOT cover the case where a file you still need
hasn't changed! That's a tougher problem to solve, and this provides
only the minimal amount of safety belt. MD5 checksums are stored in comment
fields, so packages produced with these tools are backwards compatible with
the older ones.
Running there you got any kind of strange errors from tar caused
by treating directories as tar files!
Fix it by adding new isfile(name) (check for reg. files) to simple fexists(name) calls.
2. Fix a long-standing bug in pkg_add where the failure of one package in
a multipackage installation (pkg_add *.tgz) would blow you right out of
the water. Ick.
in the packing list, or the argument to -p if it is specified, before
the requirements/installation/deinstallation scripts are called. This
enables the scripts to be written to work on the final installation
destination, even if the user uses -p to override the package's default.
