From 9ccaa6cd7c745d21c0918b0c9723fdcf44cadb94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6gler?= <ck3d@gmx.de>
Date: Thu, 21 May 2026 17:21:16 +0200
Subject: [PATCH] sherpa-onnx: fix darwin runtime linking to onnxruntime

Set DYLD_FALLBACK_LIBRARY_PATH during checkPhase and add an rpath to
the Python extension so it can locate the onnxruntime dylib on Darwin.
---
 pkgs/by-name/sh/sherpa-onnx/package.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/by-name/sh/sherpa-onnx/package.nix b/pkgs/by-name/sh/sherpa-onnx/package.nix
index b09d89265c8b..bc584ff8a08f 100644
--- a/pkgs/by-name/sh/sherpa-onnx/package.nix
+++ b/pkgs/by-name/sh/sherpa-onnx/package.nix
@@ -191,6 +191,10 @@ stdenv.mkDerivation (finalAttrs: {
 
   doCheck = true;
 
+  preCheck = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    export DYLD_FALLBACK_LIBRARY_PATH=${lib.getLib onnxruntime}/lib
+  '';
+
   # Use ctest directly because the default `make check` target includes clang-tidy.
   checkPhase = ''
     runHook preCheck
@@ -202,6 +206,10 @@ stdenv.mkDerivation (finalAttrs: {
     mkdir -p $python
     cp -r ../sherpa-onnx/python/sherpa_onnx $python/
     rm $out/lib/_sherpa_onnx*.so
+    ${lib.optionalString stdenv.hostPlatform.isDarwin ''
+      install_name_tool -add_rpath ${lib.getLib onnxruntime}/lib \
+        $python/sherpa_onnx/lib/_sherpa_onnx*.so
+    ''}
   '';
 
   passthru = {