diff --git a/NEWS b/NEWS
index b7fd69fcf..786177a09 100644
--- a/NEWS
+++ b/NEWS
@@ -214,6 +214,10 @@ the C variables that control garbage collection.  The environment
 variables GUILE_MAX_SEGMENT_SIZE, GUILE_INIT_SEGMENT_SIZE_2,
 GUILE_INIT_SEGMENT_SIZE_1, and GUILE_MIN_YIELD_2 should be used.
 
+** The function scm_definedp has been renamed to scm_defined_p
+
+The name scm_definedp is deprecated.
+
 ** The struct scm_cell has been renamed to scm_t_cell
 
 This is in accordance to Guile's naming scheme for types.  Note that
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index 76823efb3..e9bb2eb37 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,3 +1,8 @@
+2002-10-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>
+
+	* evalext.h, evalext.c (scm_definedp, scm_defined_p):  Renamed
+	scm_definedp to scm_defined_p and deprecated scm_definedp.
+
 2002-10-19  Dirk Herrmann  <D.Herrmann@tu-bs.de>
 
 	* async.h, async.c (scm_system_async):  Fixed deprecation to work
diff --git a/libguile/evalext.c b/libguile/evalext.c
index 16b3ed567..57b32e9e9 100644
--- a/libguile/evalext.c
+++ b/libguile/evalext.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,1999,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1998,1999,2000,2001,2002 Free Software Foundation, Inc.
  * 
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -67,13 +67,13 @@ scm_m_generalized_set_x (SCM xorig, SCM env SCM_UNUSED)
     scm_misc_error (scm_s_set_x, scm_s_variable, SCM_EOL);
 }
 
-SCM_DEFINE (scm_definedp, "defined?", 1, 1, 0,
+SCM_DEFINE (scm_defined_p, "defined?", 1, 1, 0,
             (SCM sym, SCM env),
 	    "Return @code{#t} if @var{sym} is defined in the lexical "
 	    "environment @var{env}.  When @var{env} is not specified, "
 	    "look in the top-level environment as defined by the "
 	    "current module.")
-#define FUNC_NAME s_scm_definedp
+#define FUNC_NAME s_scm_defined_p
 {
   SCM var;
 
diff --git a/libguile/evalext.h b/libguile/evalext.h
index 0f2a7dc65..e0db5d2bc 100644
--- a/libguile/evalext.h
+++ b/libguile/evalext.h
@@ -51,10 +51,16 @@
 
 
 SCM_API SCM scm_m_generalized_set_x (SCM xorig, SCM env);
-SCM_API SCM scm_definedp (SCM sym, SCM env);
+SCM_API SCM scm_defined_p (SCM sym, SCM env);
 SCM_API SCM scm_m_undefine (SCM x, SCM env);
 SCM_API void scm_init_evalext (void);
 
+#if (SCM_ENABLE_DEPRECATED == 1)
+
+#define scm_definedp scm_defined_p
+
+#endif
+
 #endif  /* SCM_EVALEXT_H */
 
 /*