--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3rdparty/vmime/cmake/cmake-cxx11/Modules/CheckCXX11Features/cxx11-test-class_override_final_fail_compile.cpp	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,25 @@
+class base {
+public:
+    virtual int foo(int a)
+     { return 4 + a; }
+    virtual int bar(int a) final
+     { return a - 2; }
+};
+
+class sub final : public base {
+public:
+    virtual int foo(int a) override
+     { return 8 + 2 * a; };
+    virtual int bar(int a)
+     { return a; }
+};
+
+class impossible : public sub { };
+
+int main(void)
+{
+    base b;
+    sub s;
+
+    return 1;
+}