New comment by fosslinux on void-packages repository

https://github.com/void-linux/void-packages/pull/21226#issuecomment-617460329

Comment:
@pullmoll , the first two passes are to completely remove any references to the host system in the initial toolchain. The last build is for the final system. They do the two-pass thing in the initial toolchain as they have speical things that --enable-bootstrap can't do for them. AFAICT, all void needs is `--enable-bootstrap`.