[Bug c++/62232] New: -Wnon-virtual-dtor shouldn't warn on final classes

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62232

            Bug ID: 62232
           Summary: -Wnon-virtual-dtor shouldn't warn on final classes
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org

Please consider:

markus@x4 ~ % cat destruct.ii
class base
{
protected:
  ~base () {}
  virtual void foo (){};
};
class derive final : public base
{
};

markus@x4 ~ % clang++ -Wnon-virtual-dtor -c -std=c++11 destruct.ii
markus@x4 ~ % g++ -Wnon-virtual-dtor -c -std=c++11 destruct.ii
destruct.ii:7:7: warning: ‘class derive’ has virtual functions and accessible
non-virtual destructor [-Wnon-virtual-dtor]
 class derive final : public base
       ^

We shouldn't warn in this case.