On Tue, 31 Oct 2017 22:52:33 +0100 Andreas Tobler <andreast-l...@fgznet.ch> 
> On 31.10.17 22:36, Gerald Pfeifer wrote:
>> On Tue, 31 Oct 2017, Andreas Tobler wrote:
>> Those possibly still stuck on obsolete versions of FreeBSD don't
>> need/want fancy new compilers and GCC 4.9 is still available for
>> use and does not exhibit this issue, correct?  (If it does, nobody
>> reported any problems.)
> It is limited to gcc >=5, gcc-4.9 does not have the 
>>> I can 'ifdef' the new code and in the 'else' case we fall back to
>>> the already existing path.
>> If it's "cheap", that might be nice.
> Attached, the test is running on gcc trunk and gcc-6. gcc-6 is the last 
> one with java support and there we have quite extensive test cases which 
> really test for this MD_FALLBACK_FRAME_STATE_FOR macro. These test 
> cases, Throw_2 and co do pass. So I think the new bits should be fine.
> Also some coming asan test cases do pass with this addition too.

Please commit it to the ports tree as well, because there are reports
that ftp/curl can trigger the problem.
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