This actually will matter when I (soon) land cross-compilation support,
and native deps are compiled for the build, instead of host, platform.
But even now, it's good style do this, and one less thing to review
later.
The use of `$nativePkgs` is unfortunate, as it will need to be
swapped out for `$crossPkgs` for build != host builds. This will just a
temporarily cause pain, however, as eventually I will change stdenv to
use a `$runPkgs` (or moral equivalent) in both case.
Closes https://github.com/NixOS/nixpkgs/pull/26480.
By default, `ghcjs` haddocks are precluded from being built. I see no reason to disallow building haddocks on projects built with `ghc` and `ghcjs` (someone can correct me here). `HaLVM` currently does not support `haddock` since it's a Stage 1 `GHC`. https://github.com/GaloisInc/HaLVM/blob/master/src/misc/build.mk.in#L20
Currently, building `haddocks` for `ghcjs` projects requires altering the derivation, which doesn't allow users to take advantage of the cache. This change will relieve that.
As noted in #25595, a change introduced in 4b77d425aa causes an
explosion of inodes due to the constructions of many, many `ghcEnv`
symlink forests. This commit undoes that change.
To discuss reworking the support for GHCJS plugins, please see: #26192Fixes#25595
The Sierra linker added a limit on the number of paths that any one
dynamic library (`*.dylib`) can reference. This causes problems when
a Haskell library has many immediate dependencies (#22810).
We follow a similar fix as GHC/Cabal/Stack: for each derivation,
create a new directory with symlinks to all the dylibs of its immediate
dependencies, and patch its package DB to reference that directory
using the new `dynamic-library-dirs` field.
Note that this change is a no-op for older versions of GHC, i.e., they will
continue to fail on some packages as before.
Also note that this change causes the bootstrapped versions of GHC to be
recompiled, since they depend on `hscolour` which is built by
`generic-builder.nix`.
Tested by building the `stack` binary as described in #22810.
This reverts commit a27bc8b317. Please don't add
random stuff to the interface provided by the generic builder without
coordinating with others. There is a proper effort underway to provide that
information in https://github.com/NixOS/nixpkgs/pull/23023.
This reverts commit c153036525. Please don't add
random stuff to the interface provided by the generic builder without
coordinating with others. There is a proper effort underway to provide that
information in https://github.com/NixOS/nixpkgs/pull/23023.
A function is added to enable the generation of a HPC report. For example:
pkgs.haskell.lib.doCoverage drv
will create a HPC report of the Haskell package drv in the directory:
$out/share/hpc
Closes https://github.com/NixOS/nixpkgs/pull/22797/files.
-split-sections replaced -split-objs with following upsides:
1) -split-objs adds considerable overhead to compile time
2) combined with stripping, it causes issues when cross-compiling
For upstream see https://ghc.haskell.org/trac/ghc/ticket/8405
This is supported only for Linux/Windows using ld linker.
GHC master also turns on -split-sections by default.
Example using stack:
Without splitting
$ du /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2
4 /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2/share/bash-completion/completions
4 /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2/share/bash-completion
4 /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2/share
23416 /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2/bin
23420 /nix/store/5paayhibayr73zqfaj458g4k4mv108jn-stack-1.3.2
With -split-objs
$ du /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2
20632 /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2/bin
4 /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2/share/bash-completion/completions
4 /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2/share/bash-completion
4 /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2/share
20636 /nix/store/fypymm529adpx71gdzm0851xz42wdbz0-stack-1.3.2
With -split-sections
$ du /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2
4 /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2/share/bash-completion/completions
4 /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2/share/bash-completion
4 /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2/share
20672 /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2/bin
20676 /nix/store/40l6krinx1zx41lr87c4m12hxj4ldf3x-stack-1.3.2
Note: you currently need following overrides to build stack on 802:
vector-algorithms = dontCheck super.vector-algorithms;
path-io = doJailbreak super.path-io;
stack = doJailbreak super.stack;
Note: Should also work on GHC 8.0.1, but I'm being careful here.
We could backport later on.
This fix doesn't actually fix the cabal bug (see #16357), but it does
cause other bugs (see #20476)
Fixes#20476
This reverts commit b89fa5fd5c, reversing
changes made to e4b146b041.
This reverts commit ec8b816154. The change told
the Cabal build system to use the hash-part of $out as the internal identifier
for the library it's building (rather than generating such an ID itself). While
a good idea in theory, this choice had an unfortunate side-effect: When Cabal
links libraries X, Y, and Z into an executable, then the generated binary
contains their respective IDs. Now, Nix finds those strings and treats them as
an indication that there is a *run-time dependency* on the corresponding store
paths. This means that the generated executable will always depend on the store
paths of all the Haskell libraries that went into it, even when linked
statically.
This commit fixes a problem that occurs with externally linked haskell
libraries on Darwin. It does this by adding the libraries to the
--extra-lib-dirs flag and the DYLD_LIBRARY_PATH environment variable.
Without this patch, attempts to install at least some of the packages
that start to use setupHaskellDepends (mostly gtk-related packages)
results in collisions:
building path(s) ‘/nix/store/63k5smns43f5r2ad8wcc242x0gwd70m3-ghc-8.0.1’
collision between `/nix/store/k18i1nm5hgnb82y9w2g9hmlwhk3szjld-ghc-8.0.1/lib/ghc-8.0.1/Cabal-1.24.0.0/Distribution/Compat/Binary.dyn_hi' and `/nix/store/0rwhbwsg9kmywgbrib2bs29p2hmi80za-Cabal-1.24.0.0/lib/ghc-8.0.1/Cabal-1.24.0.0/Distribution/Compat/Binary.dyn_hi'
builder for ‘/nix/store/vrjkfpm8sb96m9i5k74h8vn0rwddgy4v-ghc-8.0.1.drv’ failed with exit code 25
This would appear to me to be a consequence of setupHaskellDepends
entries being added to propagateBuildInputs. It is sufficient in the
cases I'm familiar with (taffyBar), and I think correct, to simply add
it to the otherBuildInputs.
