From 227cfc24fef11b4ad179c0cadcd9d9da5f785f2d Mon Sep 17 00:00:00 2001
From: sternenseemann <0rpkxez4ksa01gb3typccl0i@systemli.org>
Date: Sun, 9 May 2021 01:41:11 +0200
Subject: [PATCH] haskellPackages.HTF: attempt to fix test suite on darwin

A script used at test time in HTF assumes that you have GNU coreutils
installed in a manner where all executables are prefixed with a `g`.
Since we use GNU coreutils in the stdenv anyways, this is not necessary
and needs to be patched out.
---
 pkgs/development/haskell-modules/configuration-darwin.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-darwin.nix b/pkgs/development/haskell-modules/configuration-darwin.nix
index 6768bc5d6b4f..4f7a6a131d7e 100644
--- a/pkgs/development/haskell-modules/configuration-darwin.nix
+++ b/pkgs/development/haskell-modules/configuration-darwin.nix
@@ -161,4 +161,11 @@ self: super: {
     ] ++ (drv.librarySystemDepends or []);
   });
 
+  HTF = overrideCabal super.HTF (drv: {
+    # GNU find is not prefixed in stdenv
+    postPatch = ''
+      substituteInPlace scripts/local-htfpp --replace "find=gfind" "find=find"
+    '' + (drv.postPatch or "");
+  });
+
 }