From 87ca1442f995a87f364982150a15b0c671090ada Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Sat, 13 Nov 2021 20:02:48 +0000
Subject: [PATCH] trellis: fix build for darwin

---
 pkgs/development/embedded/fpga/trellis/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/embedded/fpga/trellis/default.nix b/pkgs/development/embedded/fpga/trellis/default.nix
index 8c44e34e3ed1..2289b6fb6398 100644
--- a/pkgs/development/embedded/fpga/trellis/default.nix
+++ b/pkgs/development/embedded/fpga/trellis/default.nix
@@ -41,6 +41,12 @@ in stdenv.mkDerivation rec {
     cd libtrellis
   '';
 
+  postInstall = lib.optionalString stdenv.isDarwin ''
+    for f in $out/bin/* ; do
+      install_name_tool -change "$out/lib/libtrellis.dylib" "$out/lib/trellis/libtrellis.dylib" "$f"
+    done
+  '';
+
   doInstallCheck = true;
 
   installCheckPhase = ''