* ghcHEAD: bump to 8.11.20200403
* ghcHead: reduce diff vs. 8.10.1
dontAddExtraLibs was removed by accident (IMO) in ea19a8ed1e
* ghcHEAD: add ability to use system libffi
- enable nixpkgs' libffi
- minimise diffs against 8.10.1
- remove patching
* remove configure warning about --with-curses-includes
configure: WARNING: unrecognized options: --with-curses-includes
The 8.4.x version of ghcjs hasn't compiled successfully
in ages, so I reckon it's unused. The even older code
in pkgs/development/compilers/ghcjs is unused entirely;
it's not even referenced in Nixpkgs.
ghc-8.4.4 requires sphinx < 1.8, otherwise build fails on haddock with:
Extension error: The 'ghc-flag' directive is already registered to domain std
Also fixed evaluation errors in configurations of ghc-8.2.x and ghc-8.4.x.
Closes https://github.com/NixOS/nixpkgs/pull/55703.
If the nix store lives on NFS, `ghc 8.2.1` is unable to build a package
database. This bug was fixed by @bgamari in `ghc 8.2.2` here:
https://ghc.haskell.org/trac/ghc/ticket/13945
This commit upgrades the unpacked bootstrap GHC version, so that we can build
newer versions of GHC even if the store is on NFS.
We keep the latest minor release of each one of the last 3 major releases,
which currently are GHC versions 8.2.2, 8.4.4, and 8.6.1. We also have
ghc-HEAD, but this doesn't count.
Dropping these compilers implied that we have to drop the corresponding
versions of ghcjs, too. We can also drop a shitload of obsolete compiler
patches that newer versions no longer need.
At some point, we can probably simplify the generic builder, too.
The per-version `default.nix`es just fill in default arguments. It is
much more useful to have the `.override` from the inner `callPackage`,
for finer control. Converting the outer `callPackage` to a plain import
makes the inner one the only one, revealing its `.override`.
The compilers themselves can pull them from `bootPkgs`, where they
should always come from anyways. This enforces that, simplifies that
code, and allows use to avoid more `rec { ... }` too.
Fixes mass build failures in these package sets,
due to "unknown pacakge: integer-simple".
Attributes that demonstrate this (see before/after):
* haskell.packages.integer-simple.ghc843.hello
* haskell.packages.integer-simple.ghc802.scientific
The second one is from the NixOS manual, FWIW.
