Notifying maintainers:
@mascguy for port imath.
@MarcusCalhoun-Lopez for port imath.

@JGoldstone dod the library name change with this update (i.e., was there a need to rebuild packages that link to the "imath" library?)

The library name did change. I will both look at prior update commits (to see which dependent packages had their Revision bumped) and in the port tree.

There is an OpenEXR PR also in play; the MacPorts guide discouraged one from putting more than one package in a commit, so, separate PRs. Because it is so common for callers of OpenEXR to also use Imath, that means that as separate PRs, there will be a bunch of packages that get their Revisions bumped twice, I guess. I will put a comment up on the OpenEXR PR saying it should be held until this Imath PR can have its dependencies sorted out and is merged. Does that sound like a reasonable way to proceed, to you?

I bumped the Revision numbers whenever I could find a Portfile with a dependency on port:math, except for the places where the thing being revisioned was a Python binding, since I don't believe the Imath Python bindings are currently being built (but that's a project for another day).

Fairly sure that my inept handling of the Imath PR branch getting to be nearly 2,000 commits behind upstream resulted in this PR becoming hopelessly mangled. Closing it, and will delete the branch and restart the project in a couple of days.