python3.pkgs.mesonpep517: add build dependencies and fix metadata

pkgs/development/python-modules/mesonpep517/default.nix

···
 , ninja
 , setuptools
 , toml
+, wheel
 }:
 
 # TODO: offer meson as a Python package so we have dist-info folder.
···
     hash = "sha256-Fyo7JfLqHJqbahEjVDt/0xJxOfVLqLn3xNJ4lSB7KIw=";
   };
 
+  # Applies the following merge request, which doesn't apply cleanly:
+  # https://gitlab.com/thiblahute/mesonpep517/-/merge_requests/25
+  #
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'backend-path = "."' 'backend-path = ["."]'
+  '';
+
   nativeBuildInputs = [
     setuptools
+    wheel
   ];
 
   propagatedBuildInputs = [ toml ];
-
-  # postPatch = ''
-  #   # Meson tries to detect ninja as well, so we should patch meson as well.
-  #   substituteInPlace mesonpep517/buildapi.py \
-  #     --replace "'meson'" "'${meson}/bin/meson'" \
-  #     --replace "'ninja'" "'${ninja}/bin/ninja'"
-  # '';
 
   propagatedNativeBuildInputs = [ meson ninja ];