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, 16 insertions, 0 deletions

diff --git a/ext/pybind11/tests/test_embed/catch.cpp b/ext/pybind11/tests/test_embed/catch.cpp
new file mode 100644
index 000000000..cface485d
--- /dev/null
+++ b/ext/pybind11/tests/test_embed/catch.cpp
@@ -0,0 +1,16 @@
+// The Catch implementation is compiled here. This is a standalone
+// translation unit to avoid recompiling it for every test change.
+
+#include <pybind11/embed.h>
+
+#define CATCH_CONFIG_RUNNER
+#include <catch.hpp>
+
+namespace py = pybind11;
+
+int main(int argc, const char *argv[]) {
+    py::scoped_interpreter guard{};
+    auto result = Catch::Session().run(argc, argv);
+
+    return result < 0xff ? result : 0xff;
+}