From acee865bcf0131c10ed475b435af802ffe8dceee Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Fri, 4 Aug 2023 09:44:35 -0400
Subject: Set BIZ_ROOT in nix builder

---
 Biz/Bild.hs          | 4 ++--
 Biz/Bild/Builder.nix | 5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/Biz/Bild.hs b/Biz/Bild.hs
index 58a1b9c..cf471fe 100644
--- a/Biz/Bild.hs
+++ b/Biz/Bild.hs
@@ -467,13 +467,13 @@ analyze hmap ns = case Map.lookup ns hmap of
                     packageSet = "ghcWith",
                     compilerFlags =
                       [ "-Werror",
-                        "-i$src",
+                        "-i$BIZ_ROOT",
                         "-odir",
                         ".",
                         "-hidir",
                         ".",
                         "--make",
-                        "$src" </> path
+                        "$BIZ_ROOT" </> path
                       ]
                         ++ case out of
                           Meta.Bin o ->
diff --git a/Biz/Bild/Builder.nix b/Biz/Bild/Builder.nix
index 9516ca1..04002d0 100644
--- a/Biz/Bild/Builder.nix
+++ b/Biz/Bild/Builder.nix
@@ -22,10 +22,11 @@ let
        private.selectAttrs (lib.strings.splitString " " langDeps) pkgset
      else
        [];
-in stdenv.mkDerivation {
+in stdenv.mkDerivation rec {
   inherit name buildPhase;
-  buildInputs = [ (private.${packageSet} deps) ];
   src = lib.sources.cleanSourceWith {inherit filter; src = lib.sources.cleanSource root;};
+  BIZ_ROOT = src;
+  buildInputs = [ (private.${packageSet} deps) ];
   installPhase = ''
     mkdir -p $out/bin && cp ${name} $out/bin
   '';
-- 
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