bluez: don’t build python packages when tests are disabled

Can’t run these on cross anyway

pkgs/os-specific/linux/bluez/default.nix

@@ -11,9 +11,13 @@
 , readline
 , systemd
 , udev
-}:
-
-stdenv.mkDerivation rec {
+}: let
+  pythonPath = with python3.pkgs; [
+    dbus-python
+    pygobject3
+    recursivePthLoader
+  ];
+in stdenv.mkDerivation rec {
   pname = "bluez";
   version = "5.54";
 
@@ -22,12 +26,6 @@ stdenv.mkDerivation rec {
     sha256 = "1p2ncvjz6alr9n3l5wvq2arqgc7xjs6dqyar1l9jp0z8cfgapkb8";
   };
 
-  pythonPath = with python3.pkgs; [
-    dbus-python
-    pygobject3
-    recursivePthLoader
-  ];
-
   buildInputs = [
     alsaLib
     dbus
@@ -44,7 +42,7 @@ stdenv.mkDerivation rec {
     python3.pkgs.wrapPython
   ];
 
-  outputs = [ "out" "dev" "test" ];
+  outputs = [ "out" "dev" ] ++ lib.optional doCheck "test";
 
   postPatch = ''
     substituteInPlace tools/hid2hci.rules \
@@ -79,7 +77,7 @@ stdenv.mkDerivation rec {
 
   doCheck = stdenv.hostPlatform.isx86_64;
 
-  postInstall = ''
+  postInstall = lib.optionalString doCheck ''
     mkdir -p $test/{bin,test}
     cp -a test $test
     pushd $test/test
@@ -94,8 +92,8 @@ stdenv.mkDerivation rec {
       ln -s ../test/$a $test/bin/bluez-$a
     done
     popd
-    wrapPythonProgramsIn $test/test "$test/test $pythonPath"
-
+    wrapPythonProgramsIn $test/test "$test/test ${toString pythonPath}"
+  '' + ''
     # for bluez4 compatibility for NixOS
     mkdir $out/sbin
     ln -s ../libexec/bluetooth/bluetoothd $out/sbin/bluetoothd