There is an updated pull request by sgn against master on the void-packages repository

https://github.com/sgn/void-packages cross-cc-isystem
https://github.com/void-linux/void-packages/pull/46635

wrappers/cross-cc: drop -isystem /usr/include, too
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For #46246 
#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/46635.patch is attached