New comment by tornaria on void-packages repository

https://github.com/void-linux/void-packages/pull/33332#issuecomment-937797189

Comment:
> Please split into two commits, since it isn't only changing the URL.

Done. It's essentially only changing the URL. The other changes are implied by that, namely:
- the available tarballs are git snapshots and need autotools
- since autotools are not bootstrap, it doesn't make sense for these packages to be bootstrap either

I think isl used to be required for bootstrap (makedepends of gcc) but now it is done in the gcc template, which should also be changed (right now it can't be built unless you have `isl-0.21.tar.bz2` in your sources cache) but I don't know what's the proper way to move forward with that without requiring autotools. I wonder if it's possible to bootstrap gcc without isl and have it "makedepend" on isl only for non-bootstrap builds. I also don't know the reasons why four different versions of isl are used in different places.

BTW, if it's of any help, I do have the original tarballs for all four versions of isl that are used in void-packages right now (0.16, 0.19, 0.21, 0.24).