diff --git a/src/ChangeLog b/src/ChangeLog
index e2f0230329e..bd4ae006704 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -2,6 +2,7 @@
 
 	* s/usg5-4.h: Fix previous change: keep the correct branch of a
 	removed #if.
+	(USG_SHARED_LIBRARIES): Remove duplicate definition.
 
 2008-06-26  Juanma Barranquero  <lekktu@gmail.com>
 	    Eli Zaretskii  <eliz@gnu.org>
diff --git a/src/s/usg5-4.h b/src/s/usg5-4.h
index 87f7f384ebe..a0309d7439a 100644
--- a/src/s/usg5-4.h
+++ b/src/s/usg5-4.h
@@ -219,12 +219,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  */
 #define NSIG_MINIMUM 32
 
-/* We need bss_end from emacs.c for undumping */
-
-#ifndef USG_SHARED_LIBRARIES
-#define USG_SHARED_LIBRARIES
-#endif
-
 /* We can support this */
 
 #define CLASH_DETECTION