ext: Upgrade PyBind11 to version 2.2.1

This upgrade is necessary for pybind to build with GCC 7.2.

We still need to add the patch for stl.h. MSC_FULL_VER change is no longer
needed.
See https://gem5-review.googlesource.com/c/public/gem5/+/2230

Change-Id: I806729217d022070583994c2dfcaa74476aef30f
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/5801
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/ext/pybind11/docs/advanced/smart_ptrs.rst b/ext/pybind11/docs/advanced/smart_ptrs.rst
index e4a238603..da57748ca 100644
--- a/ext/pybind11/docs/advanced/smart_ptrs.rst
+++ b/ext/pybind11/docs/advanced/smart_ptrs.rst
@@ -63,16 +63,12 @@ code?
         std::shared_ptr<Child> child;
     };
 
-    PYBIND11_PLUGIN(example) {
-        py::module m("example");
-
+    PYBIND11_MODULE(example, m) {
         py::class_<Child, std::shared_ptr<Child>>(m, "Child");
 
         py::class_<Parent, std::shared_ptr<Parent>>(m, "Parent")
            .def(py::init<>())
            .def("get_child", &Parent::get_child);
-
-        return m.ptr();
     }
 
 The following Python code will cause undefined behavior (and likely a