Reproducible, simple bug; g++ toolchain / std::string bug?

[Igor Peshansky]

On Fri, 7 Apr 2006, Steven Brown wrote:

> I've run into what appears to be a bug in the g++ toolchain or the STL's
> std::string using the latest Cygwin dist (up to date as of right now).
> Minimal test case attached.
>
> If my shared library does a callback to a function returning
> std::string, and only if the std::string is empty, I get an abort when
> that std::string is destroyed.
>
> The attached files will show this bug - run make and the xxx-cygwin.exe
> that's produced and it will abort.  The same will happen if you use
> libtool to build it the right way - the autoconf/ dir in the bug's
> repository[1] can be used for that if you want to see it (copy it into
> the main dir, ./autogen.sh && make).
>
> Any ideas as to where the problem lies or how to further identify it?

Sure.  This has been discussed on this list a few times this year -- see
the list archives.  A Google search for "cygwin dll std:string" should
show some mathces (including a reference to the GCC bug report[*] for
this, which, AFAICS, contains a patch that you can test).
	Igor
[*] <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24196>
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