From 2fe5f594f26db0617eec908262435814673b43b5 Mon Sep 17 00:00:00 2001
From: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
Date: Sun, 26 Jan 2025 22:45:56 +0000
Subject: [PATCH] llama-cpp-python: fix darwin build when Metal device has no
 name

---
 .../python-modules/llama-cpp-python/default.nix      | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkgs/development/python-modules/llama-cpp-python/default.nix b/pkgs/development/python-modules/llama-cpp-python/default.nix
index 1dfd7f9d707a3c..3d7cb90d435512 100644
--- a/pkgs/development/python-modules/llama-cpp-python/default.nix
+++ b/pkgs/development/python-modules/llama-cpp-python/default.nix
@@ -4,6 +4,7 @@
   gcc13Stdenv,
   buildPythonPackage,
   fetchFromGitHub,
+  fetchpatch2,
 
   # nativeBuildInputs
   cmake,
@@ -51,6 +52,17 @@ buildPythonPackage rec {
   };
   # src = /home/gaetan/llama-cpp-python;
 
+  patches = [
+    # fix segfault when running tests due to missing default Metal device
+    # posted at: https://github.com/ggerganov/llama.cpp/pull/11441
+    (fetchpatch2 {
+      url = "https://github.com/ggerganov/llama.cpp/pull/11441/commits/77860f97db85f1796f04809aaffcda622d0cfff2.patch?full_index=1";
+      stripLen = 1;
+      extraPrefix = "vendor/llama.cpp/";
+      hash = "sha256-bI/shVj1DB8DF2TrnEsdvQd23aHDlkGkvesdexH2dKc=";
+    })
+  ];
+
   dontUseCmakeConfigure = true;
   SKBUILD_CMAKE_ARGS = lib.strings.concatStringsSep ";" (
     lib.optionals cudaSupport [