[patch #9761] autoconf-archive's ax_cxx_compile_stdcxx.m4 fails when testing `clang++ -std=c++11 -Werror -Wnon-virtual-dtor`

URL:
  <https://savannah.gnu.org/patch/?9761>

                 Summary: autoconf-archive's ax_cxx_compile_stdcxx.m4 fails
when testing `clang++ -std=c++11 -Werror -Wnon-virtual-dtor`
                 Project: GNU Autoconf Archive
            Submitted by: yaneurabeya
            Submitted on: Thu 28 Feb 2019 09:34:09 PM UTC
                Priority: 6
                  Status: None
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

The test for C++11 fails to compile with `-Werror -Wnon-virtual-dtor` on clang
7.0.1 as the Base and Derived classes have a concrete destructor, while having
virtual methods.

The attached patch adds virtual destructors in order to unbreak testing for
`-std=c++11` with the before mentioned flags.



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File Attachments:


-------------------------------------------------------
Date: Thu 28 Feb 2019 09:34:09 PM UTC  Name:
0001-Unbreak-testing-for-std-c-11-with-clang-with-Werror-.patch  Size: 2KiB  
By: yaneurabeya

<http://savannah.gnu.org/patch/download.php?file_id=46375>

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