{python3packages.py,}meshlab: 2023.12 -> 2025.07 + use system dependencies , and update dependencies by nim65s · Pull Request #445078 · NixOS/nixpkgs

nim65s · 2025-09-21T21:59:39Z

Hi,

This PR update meshlab & python3Packages.pymeshlab from 2023.12 to 2025.07, among other things to fix build with CMake v4.

It also update their dependencies (levmar, lib3mf, tinygltf, vcg, corto, and nexus) and their packaging to use standard CMake exports (ref. cnr-isti-vclab/vcglib#248)

While here, meshlab-unstable is dropped, since it was older than 2025.07, cc. @pca006132

When I started to work on this, I did not see the work from #396295 (merged only 4 days ago), so I tried to merge this work with mine, but a few things might seem odd in the history. cc. @yzx9

I tested that by opening meshlab GUI and loading a mesh (only on linux) and trying a simple mesh decimation from python (linux & darwin):

$ nix-shell -I nixpkgs=. -p 'python3.withPackages(p: [p.pymeshlab])' --command python
>>> from pymeshlab import MeshSet
>>> ms = MeshSet()
>>> ms.load_new_mesh("/…/base_link.STL")
>>> ms.meshing_decimation_quadric_edge_collapse()
>>> ms.save_current_mesh("/…/base_link2.STL")

And, yes, base_link2.STL takes less disk space than base_link.STL (a random file from example-robot-data)

Things done

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nim65s · 2025-09-21T22:26:54Z

`nixpkgs-review` result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 445078
Commit: e6a43460d3e6a1113b56d04bb7619c0b16475717

`x86_64-linux`

✅ 21 packages built:

corto
kicadAddons.kikit
kicadAddons.kikit-library
kikit
kikit.dist
levmar
lib3mf
lib3mf.dev
libigl
meshlab
openbrf
openmvs
openscad
openscad-unstable
python312Packages.pymeshlab (python313Packages.pymeshlab)
snis-unwrapped
tinygltf
vcg
vclab-nexus
vclab-nexus.bin
wings

`aarch64-darwin`

❌ 1 package failed to build:

openscad

✅ 13 packages built:

corto
levmar
lib3mf
lib3mf.dev
libigl
meshlab
openmvs
openscad-unstable
python312Packages.pymeshlab (python313Packages.pymeshlab)
tinygltf
vcg
vclab-nexus
vclab-nexus.bin

Openscad fail on darwin seems unrelated:

[nix-shell:~/.cache/nixpkgs-review/pr-445078-1]$ grep error logs/openscad-aarch64-darwin.log 
otool: error: '/opt/local/lib/libboost_thread*': No such file or directory
src/node.cc:107:67: error: no member named 'mem_fun' in namespace 'std'; did you mean 'mem_fn'?
1 error generated.

pkgs/by-name/me/meshlab/1617_cmake-use-system-dependencies-install-exports.patch

nim65s · 2025-09-23T09:04:04Z

part of #445447

pkgs/top-level/all-packages.nix

pkgs/by-name/me/meshlab/1617_cmake-use-system-dependencies-install-exports.patch

pkgs/by-name/me/meshlab/package.nix

pkgs/top-level/all-packages.nix

SuperSandro2000

otherwise LGTM

pkgs/by-name/li/lib3mf/package.nix

pkgs/by-name/li/libigl/package.nix

pkgs/by-name/vc/vclab-nexus/package.nix

pkgs/by-name/me/meshlab/package.nix

pkgs/applications/graphics/pymeshlab/default.nix

yzx9 · 2025-09-30T05:50:59Z

`nixpkgs-review` result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 445078
Commit: a45e831d0525f8a6f0f4038bf652c490f59fe547

`x86_64-linux`

✅ 21 packages built:

corto
kicadAddons.kikit
kicadAddons.kikit-library
kikit
kikit.dist
levmar
lib3mf
lib3mf.dev
libigl
meshlab
openbrf
openmvs
openscad
openscad-unstable
python312Packages.pymeshlab (python313Packages.pymeshlab)
snis-unwrapped
tinygltf
vcg
vclab-nexus
vclab-nexus.bin
wings

`aarch64-darwin`

✅ 14 packages built:

corto
levmar
lib3mf
lib3mf.dev
libigl
meshlab
openmvs
openscad
openscad-unstable
python312Packages.pymeshlab (python313Packages.pymeshlab)
tinygltf
vcg
vclab-nexus
vclab-nexus.bin

Tested with open a mesh (.obj) on aarch64-darwin

fix meshlab on darwin: ``` [ 47%] Building CXX object src/meshlabplugins/filter_cubization/CMakeFiles/filter_cubization.dir/filter_cubization_autogen/mocs_compilation.cpp.o In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/build/src/meshlabplugins/filter_cubization/filter_cubization_autogen/mocs_compilation.cpp:2: In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/build/src/meshlabplugins/filter_cubization/filter_cubization_autogen/EWIEGA46WW/moc_filter_cubization.cpp:10: In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/build/src/meshlabplugins/filter_cubization/filter_cubization_autogen/EWIEGA46WW/../../../../../../src/meshlabplugins/filter_cubization/filter_cubization.h:28: In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/src/common/../common/plugins/interfaces/filter_plugin.h:29: In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/src/common/../common/plugins/interfaces/../../ml_document/mesh_document.h:27: In file included from /tmp/nix-build-meshlab-2025.07.drv-0/source/src/common/../common/plugins/interfaces/../../ml_document/mesh_model.h:26: In file included from /nix/store/18nlfi993h20y6dd1kfg8zm9gaglwygn-glew-2.2.0-dev/include/GL/glew.h:1217: In file included from /nix/store/rhlyld20zdzdi5wghb4b12gw52s9whr9-apple-sdk-11.3/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers/glu.h:9: /nix/store/zchkzj4md6q4lq09iidcm4c8n7r22k46-libigl-2.6.0/include/igl/OpenGL/gl.h:23:10: fatal error: 'glad/glad.h' file not found 23 | #include <glad/glad.h> | ^~~~~~~~~~~~~ ```

Co-authored-by: Sandro <[email protected]>

- fix CMake exports - add missing library - update to llvm 19 Co-authored-by: Zexin Yuan <[email protected]>

Co-authored-by: Sandro <[email protected]>

Co-authored-by: jopejoe1 <[email protected]>

Somehow this was working before, but around 2025-10-23, something changed on master, and nixpkgs-review would stop working on NixOS#445078: ``` $ nix build -L github:NixOS/pull/445078/head#lib3mf.dev $ eza result-dev/include/  lib3mf/ $ nix build -L github:NixOS/pull/445078/merge#lib3mf.dev $ eza result-dev/include/ "result-dev/include/": No such file or directory (os error 2) ``` The headers are now installed in the build tree: ``` -- Installing: /nix/store/i7qd0hcky65i557fqjl5qq3xrp30hwhz-lib3mf-2.4.1/lib/lib3mf.so.2 -- Installing: /nix/store/i7qd0hcky65i557fqjl5qq3xrp30hwhz-lib3mf-2.4.1/lib/lib3mf.so -- Installing: /build/source/build/include/lib3mf/Bindings -- Installing: /build/source/build/include/lib3mf/Bindings/NodeJS -- Installing: /build/source/build/include/lib3mf/Bindings/NodeJS/lib3mf_nodeaddon.cc -- Installing: /build/source/build/include/lib3mf/Bindings/NodeJS/lib3mf_nodewrapper.cc ``` Maybe CMake 4.1.1 -> 4.1.2 changed something.

nim65s · 2025-10-28T18:56:02Z

rebased to fix a new conflict in aliases.nix

jopejoe1 · 2025-10-28T19:52:34Z

Running one more rebuild if that one succeeds, I will merge this.

nim65s marked this pull request as draft September 21, 2025 22:01

nim65s force-pushed the meshlab branch from cd7f79b to e6a4346 Compare September 21, 2025 22:03

nixpkgs-ci bot added 10.rebuild-linux: 11-100 This PR causes between 11 and 100 packages to rebuild on Linux. 10.rebuild-darwin: 11-100 This PR causes between 11 and 100 packages to rebuild on Darwin. labels Sep 21, 2025

nim65s force-pushed the meshlab branch from e6a4346 to 9a9dd02 Compare September 21, 2025 22:34

nim65s marked this pull request as ready for review September 21, 2025 22:37

nim65s force-pushed the meshlab branch 2 times, most recently from 7b28d0d to 0cf289a Compare September 21, 2025 22:46

nix-owners bot requested review from pca006132 and yzx9 September 21, 2025 22:52

pca006132 approved these changes Sep 22, 2025

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nixpkgs-ci bot added 12.approvals: 1 This PR was reviewed and approved by one person. 12.approved-by: package-maintainer This PR was reviewed and approved by a maintainer listed in any of the changed packages. labels Sep 22, 2025

nim65s mentioned this pull request Sep 22, 2025

levmar: fix build on darwin #443392

Closed

13 tasks

nim65s force-pushed the meshlab branch from 0cf289a to 2a9fd59 Compare September 23, 2025 12:39

LordGrimmauld mentioned this pull request Sep 23, 2025

Tracking: Build Failures with CMake 4 #445447

Open

yzx9 mentioned this pull request Sep 24, 2025

draco: move to by-name, minimize #440070

Open

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yzx9 reviewed Sep 24, 2025

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yzx9 reviewed Sep 24, 2025

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nim65s force-pushed the meshlab branch from 8085bb3 to f57c872 Compare September 24, 2025 14:34

nim65s commented Sep 24, 2025

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SuperSandro2000 reviewed Sep 25, 2025

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yzx9 approved these changes Sep 30, 2025

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nixpkgs-ci bot added 12.approvals: 2 This PR was reviewed and approved by two persons. 2.status: merge conflict This PR has merge conflicts with the target branch and removed 12.approvals: 1 This PR was reviewed and approved by one person. labels Sep 30, 2025

nim65s force-pushed the meshlab branch from c4becef to c66e9fc Compare October 5, 2025 21:12

nim65s and others added 21 commits October 28, 2025 19:54

tinygltf: init at 2.9.6

dfe018a

vcg: adopt

c38f7f8

vcg: clean

edbfc2a

vcg: switch to CMake

5332e5d

corto: 0-unstable-2024-04-05 -> v2025.07

0cc4e7d

vclab-nexus: init at 2025.05

33f715c

Co-authored-by: Sandro <[email protected]>

meshlab: adopt

4949e86

meshlab: 2023.12 -> 2025.07 + use system dependencies

8f27f46

meshlab: darwin updates

cb2baca

- fix CMake exports - add missing library - update to llvm 19 Co-authored-by: Zexin Yuan <[email protected]>

meshlab-unstable: drop

9802d58

meshlab: remove from all-packages, use by-name

ae49f7f

meshlab: darwin plist: substitute -> patch

1376ce7

Co-authored-by: Sandro <[email protected]>

python3Packages.pymeshlab: 2023.12 -> 2025.7 + use system dependencies

3994ebf

python3Packages.pymeshlab: fix on darwin

034b8dd

python3Packages.pymeshlab: dont propagate hook

163222a

Co-authored-by: Sandro <[email protected]>

openscad: fix on darwin

e8ea109

tinygltf: unvendor json & stb

974b7b3

Co-authored-by: jopejoe1 <[email protected]>

openscad-unstable: fix use of our lib3mf cmake export

c2172a7

lib3mf: fix lib3mf.pc

9c0cec0

nim65s force-pushed the meshlab branch from 69074dc to 9c0cec0 Compare October 28, 2025 18:56

jopejoe1 added this pull request to the merge queue Oct 28, 2025

Merged via the queue into NixOS:master with commit b4edd03 Oct 28, 2025
26 checks passed

nim65s deleted the meshlab branch October 28, 2025 21:42

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nim65s commented Sep 21, 2025 •

edited by dotlambda

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