5 files changed, 3 insertions, 18 deletions
diff --git a/include/mruby.h b/include/mruby.h
index 68b0c5b79..c07bca462 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -439,6 +439,9 @@ MRB_API void* mrb_alloca(mrb_state *mrb, size_t);
 
 MRB_API void mrb_state_atexit(mrb_state *mrb, mrb_atexit_func func);
 
+MRB_API void mrb_show_version(mrb_state *mrb);
+MRB_API void mrb_show_copyright(mrb_state *mrb);
+
 #ifdef MRB_DEBUG
 #include <assert.h>
 #define mrb_assert(p) assert(p)
diff --git a/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.c b/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.c
index 5396e645e..5c7bd77e0 100755
--- a/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.c
+++ b/mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.c
@@ -19,8 +19,6 @@
 #include "apibreak.h"
 #include "apilist.h"
 
-void mrb_show_version(mrb_state *);
-void mrb_show_copyright(mrb_state *);
 void mrdb_state_free(mrb_state *);
 
 static mrb_debug_context *_debug_context = NULL;
diff --git a/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c b/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c
index 6fafa340a..59f7fd5e6 100644
--- a/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c
+++ b/mrbgems/mruby-bin-mirb/tools/mirb/mirb.c
@@ -193,9 +193,6 @@ is_code_block_open(struct mrb_parser_state *parser)
   return code_block_open;
 }
 
-void mrb_show_version(mrb_state *);
-void mrb_show_copyright(mrb_state *);
-
 struct _args {
   mrb_bool verbose      : 1;
   int argc;
diff --git a/mrbgems/mruby-bin-mruby/tools/mruby/mruby.c b/mrbgems/mruby-bin-mruby/tools/mruby/mruby.c
index 247323b4e..442133f92 100644
--- a/mrbgems/mruby-bin-mruby/tools/mruby/mruby.c
+++ b/mrbgems/mruby-bin-mruby/tools/mruby/mruby.c
@@ -24,9 +24,6 @@ p(mrb_state *mrb, mrb_value obj)
 #define p(mrb,obj) mrb_p(mrb,obj)
 #endif
 
-void mrb_show_version(mrb_state *);
-void mrb_show_copyright(mrb_state *);
-
 struct _args {
   FILE *rfp;
   char* cmdline;
diff --git a/tools/mrbc/mrbc.c b/tools/mrbc/mrbc.c
index 52e762a50..b51cc4da7 100644
--- a/tools/mrbc/mrbc.c
+++ b/tools/mrbc/mrbc.c
@@ -9,16 +9,6 @@
 #define RITEBIN_EXT ".mrb"
 #define C_EXT       ".c"
 
-#if defined(__cplusplus)
-extern "C" {
-void mrb_show_version(mrb_state *);
-void mrb_show_copyright(mrb_state *);
-}
-#else
-void mrb_show_version(mrb_state *);
-void mrb_show_copyright(mrb_state *);
-#endif
-
 struct mrbc_args {
   int argc;
   char **argv;