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{ system ? "aarch64-darwin"
#, nixpkgs ? fetchTarball https://github.com/angerman/nixpkgs/archive/257cb120334.tar.gz #apple-silicon.tar.gz
, pkgs ? import <nixpkgs> { inherit system; }
, compiler ? if system == "aarch64-darwin" then "ghc8103Binary" else "ghc8103"
}: pkgs.mkShell {
# this prevents nix from trying to write the env-vars file.
# we can't really, as NIX_BUILD_TOP/env-vars is not set.
noDumpEnvVars=1;
# stop polluting LDFLAGS with -liconv
dontAddExtraLibs = true;
# we need to inject ncurses into --with-curses-libraries.
# the real fix is to teach terminfo to use libcurses on macOS.
CONFIGURE_ARGS = "--with-intree-gmp --with-curses-libraries=${pkgs.ncurses.out}/lib";
# magic speedup pony :facepalm:
#
# nix has the ugly habbit of duplicating ld flags more than necessary. This
# somewhat consolidates this.
shellHook = (with pkgs.haskell; ''
export NIX_LDFLAGS=$(for a in $NIX_LDFLAGS; do echo $a; done |sort|uniq|xargs)
export NIX_LDFLAGS_FOR_TARGET=$(for a in $NIX_LDFLAGS_FOR_TARGET; do echo $a; done |sort|uniq|xargs)
export NIX_LDFLAGS_FOR_TARGET=$(comm -3 <(for l in $NIX_LDFLAGS_FOR_TARGET; do echo $l; done) <(for l in $NIX_LDFLAGS; do echo $l; done))
export GHC=${compiler.${compiler}}/bin/ghc
export ALEX=${packages.${compiler}.alex}/bin/alex
export HAPPY=${packages.${compiler}.happy}/bin/happy
export CABAL=${packages.${compiler}.cabal-install}/bin/cabal
'');
nativeBuildInputs = (with pkgs; [
haskell.compiler.${compiler}
haskell.packages.${compiler}.cabal-install
haskell.packages.${compiler}.alex
haskell.packages.${compiler}.happy # _1_19_12 is needed for older GHCs.
clang_11
llvm_11
automake
autoconf
m4
gmp
ncurses
libiconv
zlib.out
zlib.dev
glibcLocales
# locale doesn't build yet :-/
# locale
git
python3
# python3Full
# python3Packages.sphinx
perl
which
wget
file
xz
xlibs.lndir
cacert ])
++ (with pkgs.darwin.apple_sdk.frameworks; [ Foundation Security ]);
}
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