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/*
If user need access to more haskell package for building his
diagrams, he simply has to pass these package through the
extra packages function as follow in `config.nix`:
~~~
diagrams-builder.override {
extraPackages = self : [myHaskellPackage];
}
~~~
*/
{ lib, stdenv, ghcWithPackages, makeWrapper, diagrams-builder, extraPackages ? (self: []) }:
let
# Used same technique as for the yiCustom package.
wrappedGhc = ghcWithPackages
(self: [ diagrams-builder ] ++ extraPackages self);
ghcVersion = wrappedGhc.version;
exeWrapper = backend : ''
makeWrapper \
"${diagrams-builder}/bin/diagrams-builder-${backend}" "$out/bin/diagrams-builder-${backend}" \
--set NIX_GHC ${wrappedGhc}/bin/ghc \
--set NIX_GHC_LIBDIR ${wrappedGhc}/lib/ghc-${ghcVersion}
'';
backends = ["svg" "cairo" "ps"];
in
stdenv.mkDerivation {
name = "diagrams-builder";
buildInputs = [ makeWrapper ];
buildCommand = with lib;
concatStrings (intersperse "\n" (map exeWrapper backends));
# Will be faster to build the wrapper locally then to fetch it from a binary cache.
preferLocalBuild = true;
meta = diagrams-builder.meta;
}
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