[MacPorts] #55385: ocaml: fails to build on 10.6 and lower

[MacPorts]

#55385: ocaml: fails to build on 10.6 and lower
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  Reporter:  mojca   |      Owner:  pmetzger
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  ocaml   |
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Comment (by mojca):

 I'm stealing this ticket for a while for other issues, but my suggestion
 would be the following:

 * In case it's possible to trivially fix this particular issue first, that
 would be helpful because of the planned changes on 100+ other ports. (Btw:
 where did you get the number 300? Did you also count the patchfiles?) That
 is: if you move the other ports before fixing this, all those changes will
 generate errors on the buildbot just because of the failure to build
 dependencies and you would need to rebuild them later. But don't spend too
 much time on it as dealing with old systems is not the highest priority,
 it makes more sense to first make sure that ocaml works well on newer
 systems. (If you could remove that flag by some conditional patching on <
 10.6, fine, else don't bother.)

 * You may go through some old tickets (some are 10 years old) where the
 `port` field contains `ocaml` and figure out if any of them happen to be
 addressed already, or if an upgrade to the latest version solves the
 problem. If that requires small independent patches, you can submit them
 separately, so that we apply them before the "big move". If ports are
 obsolete, feel free to delete them. If some issues have been addressed,
 ask on IRC if someone can close them for you (or collect such requests in
 another ticket perhaps?)

 * I would suggest to then try to move ports to a different subfolder and
 add an additional category. And let the buildbots try to build all of
 them. Just moving the ports should be sufficient to trigger a rebuild. You
 may collect some basic statistics about which ports need an updated etc.
 along the way.

 * Then collect statistics about which ports failed, so that you can
 address those later.

 Just a few ideas.

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Ticket URL: <https://trac.macports.org/ticket/55385#comment:13>
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