2007-03-14  Dirk Mueller  <dmueller@suse.de>

        * c-common.h (empty_body_warning): Rename to empty_if_body_warning.
        * c-common.c (empty_if_body_warning): Rephrase diagnostic message.
        * c-parser.c (c_parser_if_body): Always add an empty statement in case
        of empty body.
        * c-parser.c (c_parser_do_statement): Warn about empty body in
        do/while statement.
        * c-typeck (c_finish_if_stmt): Call empty_if_body_warning.
        * doc/invoke.texi (-Wempty-body): Update documentation.

        * cp/semantics.c (c_finish_if_stmt): Call empty_if_body_warning.
        (finish_do_body): Warn about empty body in do/while statement.

        * g++.dg/warn/do-empty.C: New.
        * gcc.dg/do-empty.c: New.
        * gcc.dg/if-empty-1.c: Update.
        * gcc.dg/20001116-1.c: Update.
        * gcc.dg/pr23165.c: Update.

From-SVN: r122928