diff --git a/ChangeLog b/ChangeLog
index e1ddbb6152..ee47ccbac9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Sun Feb 09 15:16:04 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
+
+	* intern.h (HAVE_RB_DEFINE_ALLOC_FUNC, RB_CVAR_SET_4ARGS):
+	  define to 1.
+
+	* ruby.h (NORETURN_STYLE_NEW): ditto.
+
 Sun Feb 09 12:28:18 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 	* lib/mkmf.rb (init_mkmf): add libdir to LIBPATH unless cross
diff --git a/intern.h b/intern.h
index bc630e5384..f630c84162 100644
--- a/intern.h
+++ b/intern.h
@@ -147,7 +147,7 @@ VALUE rb_f_abort _((int,VALUE*));
 void rb_remove_method _((VALUE, const char*));
 void rb_disable_super _((VALUE, const char*));
 void rb_enable_super _((VALUE, const char*));
-#define HAVE_RB_DEFINE_ALLOC_FUNC
+#define HAVE_RB_DEFINE_ALLOC_FUNC 1
 void rb_define_alloc_func _((VALUE, VALUE (*)(VALUE)));
 void rb_undef_alloc_func _((VALUE));
 void rb_clear_cache _((void));
@@ -454,7 +454,7 @@ void rb_const_assign _((VALUE, ID, VALUE));
 VALUE rb_mod_constants _((VALUE));
 void rb_autoload_load _((ID));
 VALUE rb_cvar_defined _((VALUE, ID));
-#define RB_CVAR_SET_4ARGS
+#define RB_CVAR_SET_4ARGS 1
 void rb_cvar_set _((VALUE, ID, VALUE, int));
 VALUE rb_cvar_get _((VALUE, ID));
 void rb_cv_set _((VALUE, const char*, VALUE));
diff --git a/ruby.h b/ruby.h
index aa61263b4b..547f04bc90 100644
--- a/ruby.h
+++ b/ruby.h
@@ -48,7 +48,7 @@ extern "C" {
 #define ISXDIGIT(c) (ISASCII(c) && isxdigit((unsigned char)(c)))
 #endif
 
-#define NORETURN_STYLE_NEW
+#define NORETURN_STYLE_NEW 1
 #ifndef NORETURN
 # define NORETURN(x) x
 #endif