_ 24 dln.h #undef _ _ 26 dln.h # define _(args) args _ 28 dln.h # define _(args) () _ 32 include/ruby/defines.h #undef _ _ 34 include/ruby/defines.h # define _(args) args _ 36 include/ruby/defines.h # define _(args) () _ 46 include/ruby/st.h # define _(args) args _ 32 include/ruby/util.h # define _(args) args _ 34 include/ruby/util.h # define _(args) ()