From 6acda25af6a6570ca18fe826e2c1ab0e2d4022d4 Mon Sep 17 00:00:00 2001
From: Ryan Burns <rtburns@protonmail.com>
Date: Mon, 17 Oct 2022 20:29:30 -0700
Subject: [PATCH] bpkg: add postInstall rpath fixup needed on darwin

---
 pkgs/development/tools/build-managers/build2/bpkg.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/tools/build-managers/build2/bpkg.nix b/pkgs/development/tools/build-managers/build2/bpkg.nix
index cf366f39d768..628c9304c1de 100644
--- a/pkgs/development/tools/build-managers/build2/bpkg.nix
+++ b/pkgs/development/tools/build-managers/build2/bpkg.nix
@@ -49,6 +49,10 @@ stdenv.mkDerivation rec {
     "config.bin.lib=${build2.configSharedStatic enableShared enableStatic}"
   ];
 
+  postInstall = lib.optionalString stdenv.isDarwin ''
+    install_name_tool -add_rpath '${lib.getLib build2}/lib' "''${!outputBin}/bin/bpkg"
+  '';
+
   meta = with lib; {
     description = "build2 package dependency manager";
     # https://build2.org/bpkg/doc/bpkg.xhtml