[Bug libstdc++/69388] Allow functexcept.cc definitions to be replaced

[froydnj at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69388

Nathan Froyd <froydnj at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-01-24
                 CC|                            |froydnj at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #2 from Nathan Froyd <froydnj at gcc dot gnu.org> ---
Firefox's custom implementation of the __throw_* functions also wound up biting
us when libc++ started defining functions with identical names:

https://bugzilla.mozilla.org/show_bug.cgi?id=1329520