From 5687b337f94f096d4233fbdec09df3bf2ee69462 Mon Sep 17 00:00:00 2001
From: Dean Moldovan <dean0x7d@gmail.com>
Date: Mon, 27 Feb 2017 23:39:26 +0100
Subject: [PATCH] Fix negative refcount in PyCapsule destructor

---
 include/pybind11/eigen.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/pybind11/eigen.h b/include/pybind11/eigen.h
index 5ffbc7e09..2aefcd33b 100644
--- a/include/pybind11/eigen.h
+++ b/include/pybind11/eigen.h
@@ -229,7 +229,7 @@ handle eigen_ref_array(Type &src, handle parent = none()) {
 // not the Type of the pointer given is const.
 template <typename props, typename Type, typename = enable_if_t<is_eigen_dense_plain<Type>::value>>
 handle eigen_encapsulate(Type *src) {
-    capsule base(src, [](PyObject *o) { delete reinterpret_steal<capsule>(o).operator Type*(); });
+    capsule base(src, [](PyObject *o) { delete static_cast<Type *>(PyCapsule_GetPointer(o, nullptr)); });
     return eigen_ref_array<props>(*src, base);
 }