[Bug target/58944] [4.9 Regression] bogus -Wunused-macros warnings when compiling Libreoffice

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58944

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |ASSIGNED
                 CC|                            |jakub at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31872
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31872&action=edit
gcc49-pr58944.patch

Untested fix.  It makes no sense to warn about these compiler predefined macros
with -Wunused-macros, the user has no control on what GCC predefines and what
it doesn't.  This patch seems to be the easiest hack for this.  rs6000 will
likely need similar change.