New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/21808#issuecomment-626308909

Comment:
> * The first issue is that it also packages clang and llvm when only requesting mesa.

xbps-src always uses the version of a dependency it has a template for, your git repository is most likely outdated and uses llvm9 for clang while the void repositories contain clang build with llvm10.