dev-util/re2c 0.10.6 is out! btw you can already remove this: 'DEPEND="|| ( >=dev-util/byacc-1.9 >=sys-devel/bison-2.0 )'
in the meantime re2c 0.11.0 was released (http://sourceforge.net/forum/forum.php?forum_id=648196). I ask you to please add both versions and mask this one (0.11.0), as it includes many new features and may break existing programs.
in CVS