From d21653f465f5a9d9123ac4126fd0560cf74ab0cd Mon Sep 17 00:00:00 2001
From: Pascal Wittmann <mail@pascal-wittmann.de>
Date: Tue, 19 Jun 2018 15:40:37 +0200
Subject: [PATCH] haskell generic-buider: nativeGhc should be a depsBuildBuild

It targets the build platform.
---
 pkgs/development/haskell-modules/generic-builder.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 7f3ddc48103..52df573d222 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -179,7 +179,8 @@ let
   allPkgconfigDepends = pkgconfigDepends ++ libraryPkgconfigDepends ++ executablePkgconfigDepends ++
                         optionals doCheck testPkgconfigDepends ++ optionals doBenchmark benchmarkPkgconfigDepends;
 
-  nativeBuildInputs = [ ghc nativeGhc removeReferencesTo ] ++ optional (allPkgconfigDepends != []) pkgconfig ++
+  depsBuildBuild = [ nativeGhc ];
+  nativeBuildInputs = [ ghc removeReferencesTo ] ++ optional (allPkgconfigDepends != []) pkgconfig ++
                       setupHaskellDepends ++
                       buildTools ++ libraryToolDepends ++ executableToolDepends;
   propagatedBuildInputs = buildDepends ++ libraryHaskellDepends ++ executableHaskellDepends ++ libraryFrameworkDepends;
@@ -242,7 +243,7 @@ stdenv.mkDerivation ({
 
   inherit src;
 
-  inherit nativeBuildInputs;
+  inherit depsBuildBuild nativeBuildInputs;
   buildInputs = otherBuildInputs ++ optionals (!hasActiveLibrary) propagatedBuildInputs;
   propagatedBuildInputs = optionals hasActiveLibrary propagatedBuildInputs;