On Wednesday March 28 2018 09:44:07 Ken Cunningham wrote:

> Pegged supporting libraries, like libvpx, are harder as often in the main 
> port tree the use of them on certain systems is dropped -- can't ask for 
> anything different. Interested users will have to step up.

I'm not sure I follow nor that I agree with what I think I understand. If 
pegged ports are ports no longer supported (in that form/version) on the main 
tree, why would they have to follow what the main tree does with their current 
version?
libstdc++ would be a prime example of that: apparently the main tree will drop 
it as a dependency of other ports in a nearish future. Legacy port trees for 
libstdc++ based systems shouldn't follow that move, evidently?

I agree that interested users would have to step up, anyway.

> Open to opinion on the optimal method, but so far, I've set it up that each 
> OS port tree overlay is freestanding, just to keep my mind clear.

That's the approach I had in mind too at first, until I realised that the last 
non-C++11 version of a port would be the last version in the trees for 
everything up to 10.8 . You only have to copy them once, but if you do have to 
go in later it's easy to forget a copy or 2, or mess something up otherwise.
OTOH, users would need to set up the trees list once and for all, and could be 
helped by a script.

> It needs a bit of cleanup every once in a while, as things change in the main 
> repo and I don't notice necessarily instantly.

I face the same situation with a local mod of mine, where I avoid having to 
rebuild after upgrading a dependency by preserving the shared library runtimes 
(libfoo.*.dylib). That's cumulative and after a while certain ports carry a 
number of truly obsolete versions.


BTW: such legacy trees could also be useful for people who develop and package 
targeting legacy systems.

R.

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