* c-common.c (handle_visibility_attribute): Accept "default".
* tree.h (enum symbol_visibility): New.
(decl_visibility): Declare.
* target.h (gcc_target.visibility): Take visibility arg as integer.
* varasm.c (default_assemble_visibility): Likewise.
(decl_visibility): New.
(maybe_assemble_visibility): Use it.
* output.h (default_assemble_visibility): Update prototype.
* config/rs6000/rs6000.c (rs6000_assemble_visibility): Take
visibility arg as integer.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@59559
138bc75d-0d04-0410-961f-
82ee72b054a4