From caf5c5e1cff698f73e55050bdd681f902b94a9da Mon Sep 17 00:00:00 2001
From: Christian Ulrich <christian@ulrich.earth>
Date: Wed, 22 May 2019 14:12:55 +0200
Subject: [PATCH] use recursive build inputs

---
 pkgs/nim-packages/generic.nix | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/pkgs/nim-packages/generic.nix b/pkgs/nim-packages/generic.nix
index d44fe22..6cc0f5d 100644
--- a/pkgs/nim-packages/generic.nix
+++ b/pkgs/nim-packages/generic.nix
@@ -1,15 +1,23 @@
 { stdenv, nim }:
 
-{ name, src, nimDeps ? [], buildInputs ? [], nativeBuildInputs ? [],
-  patches ? [], ... }:
+{ name, src, nimDeps ? [], buildInputs ? [], patches ? [], patchPhase ? "", ... }:
 
+let
+  getRecursiveBuildInputs = deps: with stdenv.lib.lists;
+    optionals (deps != []) ((head deps).buildInputs ++
+                            (getRecursiveBuildInputs (head deps).nimDeps) ++
+                            (getRecursiveBuildInputs (tail deps)));
+  recursiveBuildInputs = buildInputs ++ (getRecursiveBuildInputs nimDeps);
+in
 stdenv.mkDerivation {
   name = name;
   src = src;
   patches = patches;
-  buildInputs = [ nim ] ++ buildInputs;
-  nativeBuildInputs = nativeBuildInputs;
-  LD_LIBRARY_PATH = stdenv.lib.makeLibraryPath (buildInputs ++ nativeBuildInputs);
+  nativeBuildInputs = [ nim ];
+  buildInputs = recursiveBuildInputs;
+  nimDeps = nimDeps;
+  patchPhase = patchPhase;
+  LD_LIBRARY_PATH = stdenv.lib.makeLibraryPath recursiveBuildInputs;
   buildPhase = ''
     HOME=$TMPDIR
     mkdir -p $HOME/.nimble/pkgs