diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0d2afe0b3a4..47ea0f7706f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 2003-05-18  Nathanael Nerode  <neroden@gcc.gnu.org>
 
+	* config.gcc: Clear xm_file, md_file at the beginning of each pass.
+
 	* config/stormy16/stormy16.h: Remove about 3000 lines of 
 	target-independent comments.  Update copyright notice.
 
diff --git a/gcc/config.gcc b/gcc/config.gcc
index b8ceb03e20b..9256c27f476 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -224,6 +224,10 @@ enable_threads=$enable_threads_flag
 target_gtfiles=
 need_64bit_hwint=
 
+# Don't carry these over build->host->target.  Please.
+xm_file=
+md_file=
+
 # Obsolete configurations.
 case $machine in
  dummy)