On 2016-08-05 18:15, JonY wrote:
I have just updated the mingw-w64 cross compilers Cygwin 32bit and 64bit.
This version is considered testing and has --enable-vtable-verify set.
I'd consider moving it to stable if it can build non-trivial C++
applications.
I had no issues compiling a few different projects with this release,
however enabling this configure flag means that linking C++ with -static
does not work because libstdc++.a then requires VTV symbols. Also, note
that neither Fedora's nor (AFAICS) Debian's native gcc enable this
feature, so I don't know how much exposure it has received yet.
I would recommend rebuilding a 5.4.0-2 without this configure flag, and
releasing it as stable.
==== PLEASE RECOMPILE ALL YOUR C++ CODE FOR ABI COMPATIBILITY ====
Until this is stable and mingw-based C++ packages have been recompiled,
-D_GLIBCXX_USE_CXX11_ABI=0 can be used as a workaround.
--
Yaakov
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