From d9591db6f648fecabefb2557cfb3fc4212fe72c6 Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Wed, 4 Jan 2023 15:25:44 +0100
Subject: [PATCH] haskellPackages.mkDerivation: fix shebangs in JS backend
 binaries

The JavaScript backend emits `#!/usr/bin/env node` shebangs we need to
take care off using patchShebangs in fixupPhase.
---
 pkgs/development/haskell-modules/generic-builder.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 9bb64bd90298..4b7201bb6ac9 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -324,7 +324,9 @@ stdenv.mkDerivation ({
   inherit src;
 
   inherit depsBuildBuild nativeBuildInputs;
-  buildInputs = otherBuildInputs ++ optionals (!isLibrary) propagatedBuildInputs;
+  buildInputs = otherBuildInputs ++ optionals (!isLibrary) propagatedBuildInputs
+    # For patchShebangsAuto in fixupPhase
+    ++ optionals stdenv.hostPlatform.isGhcjs [ nodejs ];
   propagatedBuildInputs = optionals isLibrary propagatedBuildInputs;
 
   LANG = "en_US.UTF-8";         # GHC needs the locale configured during the Haddock phase.