New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/issues/31055#issuecomment-1001855903

Comment:
A different solution (which also seems to work) is to run
```
$XBPS_INSTALL_CMD -Ayf cross-$XBPS_CROSS_TRIPLET-libc
```
when cross building, but this seems more costly.