diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 08b7d5b6b11..586fa1f0398 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-23  Ian Lance Taylor  <ian@wasabisystems.com>
+
+	* dyn-string.c: Remove test of IN_LIBGCC2 and IN_GLIBCPP_V3 and
+	the associated #define of RETURN_ON_ALLOCATION_FAILURE.
+
 2004-02-16  Matt Kraai  <kraai@alumni.cmu.edu>
 
 	* regex.c: Include <ansidecl.h>.
diff --git a/libiberty/dyn-string.c b/libiberty/dyn-string.c
index 1da76c2110d..5d48cdc6955 100644
--- a/libiberty/dyn-string.c
+++ b/libiberty/dyn-string.c
@@ -1,5 +1,5 @@
 /* An abstract string datatype.
-   Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
    Contributed by Mark Mitchell (mark@markmitchell.com).
 
 This file is part of GNU CC.
@@ -45,15 +45,6 @@ Boston, MA 02111-1307, USA.  */
 #include "libiberty.h"
 #include "dyn-string.h"
 
-/* If this file is being compiled for inclusion in the C++ runtime
-   library, as part of the demangler implementation, we don't want to
-   abort if an allocation fails.  Instead, percolate an error code up
-   through the call chain.  */
-
-#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
-#define RETURN_ON_ALLOCATION_FAILURE
-#endif
-
 /* Performs in-place initialization of a dyn_string struct.  This
    function can be used with a dyn_string struct on the stack or
    embedded in another object.  The contents of of the string itself