configure: -Werror= make no sense for "no" and "extra"
configure: -Werror= make no sense for "no" and "extra"

gcc error out when -Werror=extra -Werror=no-*
are used. And it is the most sensible thing to do.

https://bugzilla.gnome.org/show_bug.cgi?id=680976

GNOME/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks2,renatofilho/folks2,pwithnall/folks,renatofilho/folks,pwithnall/folks,renatofilho/folks,renatofilho/folks2,renatofilho/folks2,renatofilho/folks,GNOME/folks,GNOME/folks