openexr
=======

Situation with openexr is a bit excesive: we have 5 different versions of the library.


- openexr-2.2.1 and openexr3.2-3.2.4.
  Used by the `exrtranslator` (on x86_gcc2, and the rest of archs, respectively)

  Newer versions of `openexr` require `libdeflate`, which doesn't has a gcc2 package, so
  that's why we're stuck with 2.2.1 for gcc2.

  I'd suggest just dropping the gcc2 version of the exrtranslator, as
  I don't see much of a use-case for such format being used in tandem with gcc2 apps.

- openexr-2.4. Used (among others) by:
	- opencv3-3.4.3
	- openscenegraph-3.6.5
	- openvdb-7.1.0
	- orcaslicer-2.3.0
	- superslicer-2.5.60.0
	- luminance_hdr-2.6.1.1
	- openmw-0.47.0

Can we move these to openexr3.2 (or at least to openexr30?)

That leaves:

- openexr25. nothing seems to use its provided "lib:"s at least. (opened #12709 to drop it)

- openexr30. its libs are used by:
	- haikuwebkit
	- webpositive
	- calligra
	- kimageformats
	- blender2 (disabled)
	- blender3
	- gmic
	- povray
	- alembic
	- libjxl
	- opencolorio