* gnu/packages/patches/cgal-security-pr-5371.patch: New patch. Downloaded from
<https://patch-diff.githubusercontent.com/raw/CGAL/cgal/pull/5371.patch>, with
hunks on files matching pattern "*Convex_decomposition_3*" removed because
they don't exist in cgal's released sources.
* gnu/local.mk (dist_patch_DATA): Register it.
* gnu/packages/graphics.scm (cgal): Update to 5.2.
[source]: Apply patch.
* gnu/packages/graphics.scm (openimageio): Update to 2.2.10.1.
[arguments]: Do not use system pugixml.
[inputs]: Add fmt.
* gnu/packages/graphics.scm (blender)[inputs]: Add "pugixml".
The imgui submodule has been removed upstream.
* gnu/packages/graphics.scm (ogre): Update to 1.12.9.
[source]: Don't clone recursively.
[native-inputs]: Add dear-imgui-source.
[arguments]: Add an ‘unpack-dear-imgui’ phase.
Add IMGUI_DIR to #:configure-flags.
Restore blender@2.79b, the last version that does not require OpenGL 3,
and therefore the last version to work on many older computers. Note
that this commit relies on blender-2.79-newer-ffmpeg.patch and
blender-2.79-python-3.7-fix.patch, which were left in the tree when
blender@2.79b was previously removed in commit
1f14453eed.
* gnu/packages/patches/blender-2.79-gcc8.patch,
gnu/packages/patches/blender-2.79-gcc9.patch,
gnu/packages/patches/blender-2.79-oiio2.patch,
gnu/packages/patches/blender-2.79-python-3.8-fix.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/graphics.scm (blender-2.79): New variable.
There were still two tests failing on aarch64-linux:
1. rotated-rect-test,
2. ellipse-test.
The first one was removed along with the RotatedRect class in latest upstream,
while the second one is yet numerical accuracy related. It gets fixed by
updating the already existing 'lib2geom-fix-tests' patch.
* gnu/packages/graphics.scm (lib2geom): Bump revision to "2", and update
commit hash to the latest one available.
* gnu/packages/patches/lib2geom-fix-tests.patch: Update patch.
