[Bug libstdc++/59807] mutex misses destructor if non-function call initialization is used

[ktietz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59807

Kai Tietz <ktietz at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-01-29
     Ever confirmed|0                           |1

--- Comment #6 from Kai Tietz <ktietz at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> Yes, the copy in the sources needs to be fixed.  Does mingw-w64 always use
> winpthread?

Sadly, no.  The use of POSIX-threading is optional.  That was actual the reason
why I didn't added it by default.  We would need to probe if pthread-library is
present, and just then activate enable it.