[Bug plugins/57852] lib/plugin-support.exp incorrectly sets PLUGINCC to compilers in prev-gcc breaks testing on lean bootstrap

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57852

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |ebotcazou at gcc dot gnu.org
         Resolution|---                         |WONTFIX

--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Please set PLUGIN_CC to the final build of the compilers in the gcc 
> subdirectory.

No, that would be wrong, PLUGINCC should be set to the compiler that was used
to build the compiler, otherwise configuration mismatches can arise, for
example if you don't bootstrap.