This package previously did override the systemd package, and instructed
ninja, systemd's previous build system, to only build the
cryptsetup-specific systemd generators (plus some manual rpath
massaging, as ninja install wasn't used).
Afterwards, users were expected to add this package to their
`systemd.generator-packages` (or since
https://github.com/NixOS/nixpkgs/pull/65376/files `systemd.packages`)
NixOS module options, so systemd will use these generators.
As the previous commit added cryptsetup support directly to the systemd
package (and pkgs.systemd now already ships the cryptsetup generators),
we don't need another package shipping the same generators.
There's a circular dependency to systemd via cryptsetup and lvm2
(systemd -> cryptsetup -> lvm2 -> udev=systemd).
However, cryptsetup only really needs the devmapper component shipped
with lvm2. So build `pkgs.cryptsetup` with a lvm2 that doesn't come with
udev.
Overriding it just for .drivers had the advantage of limiting rebuilds,
but it seems less clean and apparently it can interact a bit surprisingly
with some other overrides. /cc #94444.
Also this will get removed once patchelf gets updated.
Before this commit, we only built the main ACL2 executable. Most users
will also want the standard library (the "Community Books"), so after
this commit, we build the entire `make everything` suite, which includes
essentially everything provided in the ACL2 repository.
There's also a new top-level package called `acl2-minimal` which has
just the core ACL2 executable, for those who really only want that.
Future work: modularize the build so that we can support multiple
different subsets of the standard library. A lot of the stuff in this
complete build is probably superfluous to almost all users. Also,
because some of the books have unclear or idiosyncratic licenses, the
full build will not be cached on cache.nixos.org, and installing it will
mean spending a few hours building it. So it would be good to have a
pared down build which excluded non-free books and things that people
rarely or never use.