diagrams-core has adjusted to the Optional deprecation and monoid-extras
0.6, but the rest of the diagrams-* libraries haven't yet. Until that
happens we also need to pin it to an older version.
* charsetdetect: dependency library which is vendored fails with a cpp
failure on aarch64. Could probably theoretically support aarch64, but
doesn't in practice.
* persist-state: aarch64 (no UNALIGNED_MEMORY) and armv7l (32 bit) fail
in cpp.
The diagrams libraries universe still uses monoid-extras 0.5.1 and build
failures start cropping up when upgrading it. Since no other packages I
am aware of use this, we can pin it to 0.5.1 which still uses Option
instead of Maybe (the former of which is deprecated).
Patching this seems like a lot of work that'd break other stuff because
Option is seemingly part of the public API. Let's hope they sort all of
that out themselves before base 4.15 comes around in our main package
set.
Compilation failures are related to GHC updates and other issues which
have been resolved on the package's development repository, but not yet
released. Fetching two patches resolves the problems which is probably a
midterm solution since the repository hasn't seen any activity this year
yet.
We split configuration-hackage2nix.yaml into multiple files. We bump
cabal2nix-unstable to get support for multiple config files in
hackage2nix.
* The file main.yaml is only supposed to be edited by humans.
* The file stackage.yaml is only supposed to be updated by the
update-stackage.sh
* The file broken.yaml can be edited by humans, but probably future
helpers will want to insert broken packages into this file based on
hydra reports.
* The file transitive-broken.yaml is newly introduced to be generated
by regenerate-transitive-broken-packages.sh
regenerate-transitive-broken-packages.sh makes a nix query (in
transitive-broken-packages.nix) which evaluates all haskellPackages
once with and once without "allowBroken" this way it get's a list of
packages which are broken by some transitive dependency, but does not
disable packages which have eval errors not caused by a broken package.
