From 259b15f25d4d98ac8c097cb5d9b2aa76482ceb40 Mon Sep 17 00:00:00 2001
From: Randy Eckenrode <randy@largeandhighquality.com>
Date: Wed, 10 May 2023 12:06:54 -0400
Subject: [PATCH] rewrite-tbd: avoid infinite recursion when cmake is not
 cmakeMinimal

This was found while working on the Darwin stdenv rework. This change
allows rewrite-tbd to use the provided Makefile instead of depending on
cmake and pkg-config.

Co-authored-by: Weijia Wang <9713184+wegank@users.noreply.github.com>
---
 pkgs/os-specific/darwin/rewrite-tbd/default.nix | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/pkgs/os-specific/darwin/rewrite-tbd/default.nix b/pkgs/os-specific/darwin/rewrite-tbd/default.nix
index e5ef118e514c..5cf63754dfbb 100644
--- a/pkgs/os-specific/darwin/rewrite-tbd/default.nix
+++ b/pkgs/os-specific/darwin/rewrite-tbd/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, fetchFromGitHub, cmake, pkg-config, libyaml }:
+{ stdenv, lib, fetchFromGitHub, libyaml }:
 
 stdenv.mkDerivation {
   pname = "rewrite-tbd";
@@ -11,9 +11,17 @@ stdenv.mkDerivation {
     sha256 = "08sk91zwj6n9x2ymwid2k7y0rwv5b7p6h1b25ipx1dv0i43p6v1a";
   };
 
-  nativeBuildInputs = [ cmake pkg-config ];
+  # Nix takes care of these paths. Avoiding the use of `pkg-config` prevents an infinite recursion.
+  postPatch = ''
+    substituteInPlace Makefile.boot \
+      --replace '$(shell pkg-config --cflags yaml-0.1)' "" \
+      --replace '$(shell pkg-config --libs yaml-0.1)' "-lyaml"
+  '';
+
   buildInputs = [ libyaml ];
 
+  makeFlags = [ "-f" "Makefile.boot" "PREFIX=${placeholder "out"}"];
+
   meta = with lib; {
     homepage = "https://github.com/thefloweringash/rewrite-tbd/";
     description = "Rewrite filepath in .tbd to Nix applicable format";