Hack around a regression in Wine 6.2

This would otherwise prevent building with Wine 6.2.

CHANGELOG.md

@@ -6,6 +6,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic
 Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+
+- Wine 6.2 introduced a
+  [regression](https://bugs.winehq.org/show_bug.cgi?id=50670) that would cause
+  compile errors when building yabridge because some parts of Wine's headers are
+  no longer valid C++. Since we do not need the affecting functionality,
+  yabridge now includes a small workaround to make sure that the affected code
+  never gets compiled.
+
 ## [3.0.0] - 2021-02-14
 
 ### Added

src/wine-host/bridges/vst3.cpp

@@ -18,14 +18,23 @@
 
 #include "../boost-fix.h"
 
-#include <public.sdk/source/vst/hosting/module_win32.cpp>
-
 #include "vst3-impls/component-handler-proxy.h"
 #include "vst3-impls/connection-point-proxy.h"
 #include "vst3-impls/context-menu-proxy.h"
 #include "vst3-impls/host-context-proxy.h"
 #include "vst3-impls/plug-frame-proxy.h"
 
+// HACK: As of Wine commit `0c19e2e487d36a89531daf4897c0b6390d82a843` (or Wine
+//       6.2), Wine's `shobjidl.h` cannot be compiled under C++ because one of
+//       the parameters in the file operations interface is now named
+//       `template`, which is a reserved keyword. Since we do not need this
+//       interface, we'll just hack around this by making sure it never gets
+//       defined.
+//
+//       https://bugs.winehq.org/show_bug.cgi?id=50670
+#define __IFileOperation_INTERFACE_DEFINED__
+#include <public.sdk/source/vst/hosting/module_win32.cpp>
+
 InstancePlugView::InstancePlugView() {}
 
 InstancePlugView::InstancePlugView(