1 files changed, 0 insertions, 10 deletions
diff --git a/dln.h b/dln.h
index d98b2607e2..f1525efeb2 100644
--- a/dln.h
+++ b/dln.h
@@ -13,21 +13,11 @@
 #define DLN_H
 
 #ifdef __cplusplus
-# ifndef  HAVE_PROTOTYPES
-#  define HAVE_PROTOTYPES 1
-# endif
 # ifndef  HAVE_STDARG_PROTOTYPES
 #  define HAVE_STDARG_PROTOTYPES 1
 # endif
 #endif
 
-#undef _
-#ifdef HAVE_PROTOTYPES
-# define _(args) args
-#else
-# define _(args) ()
-#endif
-
 RUBY_SYMBOL_EXPORT_BEGIN
 
 #ifndef DLN_FIND_EXTRA_ARG