New comment by kawaiiamber on void-packages repository

https://github.com/void-linux/void-packages/pull/27763#issuecomment-756888891

Comment:
Interesting. I'm still learning xbps-src. If I'm not mistaken, would this be the right syntax?
```
make_build_args="-I${XBPS_CROSS_BASE}/usr/include/freetype2"
```