In preparation for the deprecation of `stdenv.isX`.
These shorthands are not conducive to cross-compilation because they
hide the platforms.
Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way
One example of why this is bad and especially affects compiler packages
https://www.github.com/NixOS/nixpkgs/pull/343059
There are too many files to go through manually but a treewide should
get users thinking when they see a `hostPlatform.isX` in a place where it
doesn't make sense.
```
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is"
fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is"
```
We want to remove llvmPackages_6, but it is the only version GHC 8.6.5
supports. Luckily, we actually don't need LLVM in any case, since all
X86 architectures have native codegen for Darwin and Linux, as well as
POWER for Linux. Consequently, we can just pass `null` and add an extra
assert to make this more transparent to future tinkerers.
GHC has a native backend for POWER and SPARC. This is relevant to 8.6.5
binary in the case of POWER where we actually have a bindist and don't
need to include LLVM.
GHC 8.6.5 binary is essentially broken on aarch64-linux, hence the
platform has been removed from meta in the past. We can also drop the
corresponding src data to lessen confusion.
This brings the binary GHCs on parity with the source built ones in
terms of the wrapper. The upshot of this is that compiling something
using the binary GHCs no longer depends on PATH being populated with
the tools included in stdenv at all. We can even test this by running
the installCheck with an empty environment (via `env -i`).
Copy the approach from the normal GHC derivations for adding an
`export PATH` into the scripts in `$out/bin` and use it to put the
specific LLVM version of the binary GHC into its PATH. This will
prevent the LLVM version of the GHC we are building later to take
precedence over the LLVM version this GHC needs.
This means we only have to update the llvmPackages attribute in one
place now and should prevent situations like with 8.6.5 where different
versions would be used in the package set compared to the compiler
build.
Drop comments in the configuration-ghc-X.Y.x.nix files as well, since
LLVM version isn't tied to the compiler minor version at
all (e. g. 8.10.2 and 8.10.7 have different support ranges).
Let's remove peti (retired) as well Marc, Andres and Will who haven't
been active lately. Feel free to re-add yourself, but this should at
least lessen the GitHub notifications for now.
Add lib.teams.haskell to every maintainer list additionally. I've also
added Domen and Pavol to GHC 8.10.7 binary since they are the only ones
working on aarch64-darwin so far. Let me know if that is alright with
you.
The musl support for binary GHC 8.6.5 relied on ABI compat between musl
and glibc which is no longer the case: https://github.com/NixOS/nixpkgs/issues/129247
Since there is no upstream musl (alpine) bindist for GHC 8.6.5, we can
only accept that binary 8.6.5 is not possible with musl.
The tarball download URLs seem to have changed, so we adjust them in
case anyone wants to reproduce the source of ghc8102Binary and
ghc865Binary.
Tested for x86_64-linux, i686-linux, aarch64-linux, x86_64-darwin.
Resolves#121804.
x86_64-linux
Ben Gamari's patch from #85924.
Fixes#85924, allowing one to bootstrap GHC in `pkgsMusl`
`nix-build -A pkgsMusl.haskellPackages.hello` succeeds with this patch.
