[Bug 209356] [PATCH] multimedia/assimp: Update to 3.2

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209356

--- Comment #4 from lightside <lightside at gmx.com> ---
Created attachment 170088
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=170088&action=edit
Assimp variants with conflicts or versioned library

The main motivation of this update was a possibility to build newer version of
games/pioneer port, which started to require assimp v3.2 library since 20160430
version:
https://github.com/pioneerspacesim/pioneer/blob/fc43b9fc5ef6592d4af8b4e1b814af837a82b4c4/configure.ac#L271-L307

There is a related issue with it, named "I can see through Bowfin and space
stations #3654":
https://github.com/pioneerspacesim/pioneer/issues/3654
I called this issue as "white-texture artifacts" in bug 207575, comment 5.

As I understood, the games/doomsday port uses assimp v3.1.1, according to
following links:
https://github.com/skyjake/Doomsday-Engine/tree/master/doomsday/external
https://github.com/skyjake/assimp/blob/a9566de5e252a0c0e2e94a768e885a6ab73a362c/CHANGES#L5-L16
https://github.com/skyjake/assimp/blob/a9566de5e252a0c0e2e94a768e885a6ab73a362c/CMakeLists.txt#L12-L14
I tested games/doomsday with games/doom-freedoom doom2.wad file and assimp
v3.2. Looks like, it's not affected to games/pioneer issue (i.e. white-texture
artifacts), because of different algorithm to load textures (and their material
names).

I contacted maintainers of multimedia/assimp and games/doomsday ports about
mentioned issue (but no response so far) and proposed two other variants of
assimp library (with conflicts or versioned: 3.1, 3.2), which archive I
attached to this comment, in case of found issue(s) on games/doomsday port.

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