On Feb 17, 2009, at 01:20, Rainer Müller wrote:

Comment(by b...@…):

Then we need a list of those programs which must always be from the system and path those, since I think that would be the better direction than trying to list those which shouldn't be pathed. So bzip2, cvs, open, and
 rsync should be right?  What about mtree and xar?

I am bringing this up on the mailing list, as this is the better place
for discussions than Trac.

In my opinion binaries which are vital for the operation of MacPorts
should be used from an absolute path. As far as I see, this is only
bzip2 in registry1.0 as you cannot activate/deactivate ports anymore
when bzip2 is broken. 'port deactivate' can most probably fix easily all
other issues introduced by broken binaries in PATH.

bzip2 is essential for dealing with receipts, yes, but bzip2, gzip and tar are also essential for decompressing the vast majority of distfiles. We've seen failures at extract time when a user migrated a bzip2 from a previous Mac's MacPorts installation that got broken.

In release_1_7 this is also 'rm' and 'ln' which were replaced on trunk
in r45851 [1] (should we merge this?).

Not yet, because it caused this:

http://trac.macports.org/ticket/18489
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