There is a new pull request by yopito against master on the void-packages repository

https://github.com/yopito/void-packages coin3.cmake.crossbuild
https://github.com/void-linux/void-packages/pull/30564

coin3: fix cmake support for crossbuild
CMAKE_INSTALL_INCLUDEDIR must be a relative path. This way, generated
coin-export.cmake will compute include path at runtime against installed path,
that is fine for crossbuild.
If full path is provided, generated coin-export.cmake use directly this full
path, that is wrong with of crossbuild usage.

Fine to crossbuild python3-pivy 0.6.6 (PR to come)

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#### General
- [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)

#### Have the results of the proposed changes been tested?
- [x] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR

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A patch file from https://github.com/void-linux/void-packages/pull/30564.patch is attached