libcamera: fix build on aarch64 (#403108)

pkgs/by-name/li/libcamera/package.nix

@@ -17,6 +17,7 @@
   python3,
   python3Packages,
   systemd, # for libudev
+  libpisp,
   withTracing ? lib.meta.availableOn stdenv.hostPlatform lttng-ust,
   lttng-ust, # withTracing
   withQcam ? false,
@@ -85,6 +86,7 @@ stdenv.mkDerivation rec {
 
       gtest
     ]
+    ++ lib.optionals stdenv.hostPlatform.isAarch [ libpisp ]
     ++ lib.optionals withTracing [ lttng-ust ]
     ++ lib.optionals withQcam [
       libtiff

pkgs/by-name/li/libpisp/package.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  pkg-config,
+  meson,
+  ninja,
+  boost,
+  nlohmann_json,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "libpisp";
+  version = "1.2.1";
+
+  src = fetchFromGitHub {
+    owner = "raspberrypi";
+    repo = "libpisp";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-YshU7G5Rov67CVwFbf5ENp2j5ptAvkVrlMu85KmnEpk=";
+  };
+
+  nativeBuildInputs = [
+    pkg-config
+    meson
+    ninja
+  ];
+  buildInputs = [
+    boost
+    nlohmann_json
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/raspberrypi/libpisp";
+    description = "A helper library to generate run-time configuration for the Raspberry Pi ISP (PiSP), consisting of the Frontend and Backend hardware components.";
+    license = licenses.bsd2;
+    platforms = platforms.all;
+  };
+})