From 6a3a954a6b85d2f5dd770f7ab08d12bf1052a1b5 Mon Sep 17 00:00:00 2001
From: "Ralf W. Grosse-Kunstleve" <rwgk@google.com>
Date: Sun, 22 Oct 2023 07:53:00 -0700
Subject: [PATCH] Add missing `handle_type_name<dtype>`.

Discovered via manual inspection by @sizmailov:

https://github.com/pybind/pybind11/pull/4888#issuecomment-1774023960

NOTE: This is actually a bug fix, in its own right.
---
 include/pybind11/numpy.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/pybind11/numpy.h b/include/pybind11/numpy.h
index 8551aa264..225d02571 100644
--- a/include/pybind11/numpy.h
+++ b/include/pybind11/numpy.h
@@ -41,10 +41,16 @@ PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE)
 
 PYBIND11_WARNING_DISABLE_MSVC(4127)
 
+class dtype; // Forward declaration
 class array; // Forward declaration
 
 PYBIND11_NAMESPACE_BEGIN(detail)
 
+template <>
+struct handle_type_name<dtype> {
+    static constexpr auto name = const_name("numpy.dtype");
+};
+
 template <>
 struct handle_type_name<array> {
     static constexpr auto name = const_name("numpy.ndarray");