scons: Update to version 4.2.0

[mf2k (Frank Schima)]

$ port livecheck scons
scons seems to have been updated (port version: 3.1.2, new version: 4.0.1)

[ryandesign (Ryan Carsten Schmidt)]

I tried to update the other day but it was more than just changing the version and checksums. I'll have to look in more detail later.

[mf2k (Frank Schima)]

I was able to update but not with the man page.

[ryandesign (Ryan Carsten Schmidt)]

Thanks. Looks like scons 4 drops support for python 2, so this will also require doing the work to resolve #59303.

[herbygillot (Herby Gillot)]

Does it make sense to have a separate scons4 package which conflicts with scons, but builds against Python 3.8? Then you could take your time targeting dependent software... clunky solution, but wondering how to not have to do things in a "Big Bang" way, being forced to change every affected port at the same time.

[ryandesign (Ryan Carsten Schmidt)]

I don't really want to do that. I would rather fix each port that uses scons so that it is compatible with python 3. Software can be written to be compatible with both python 2 and 3, and this can happen on a port by port basis. When done, we can update scons to use python 3 and update it to version 4.

[mf2k (Frank Schima)]

Current version is 4.2.0. It requires python 3.5+. We really need to upgrade this port to move away from requiring python 2.7.

[ryandesign (Ryan Carsten Schmidt)]

In 62a982aead24fa8767b92f303de737a7ea09ed3c/macports-ports (master):

scons: Update to 4.3.0; use python310

Closes: #59303
Closes: #60957
Closes: ​https://github.com/macports/macports-ports/pull/14998