diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 661ae1235a3e..44f8a1f57912 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2000-11-30  Richard Henderson  <rth@redhat.com>
+
+	* config/alpha/alpha.h (ASM_OUTPUT_MI_THUNK): Disable.
+	* config/alpha/alpha32.h (ASM_OUTPUT_MI_THUNK): Likewise.
+
 2000-11-30  Richard Henderson  <rth@redhat.com>
 
 	* config/alpha/elf.h (ASM_OUTPUT_SECTION_NAME): Copy elfos.h defn.
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index 75782244a4da..8645730352aa 100644
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -2236,7 +2236,9 @@ literal_section ()						\
 
 /* Output code to add DELTA to the first argument, and then jump to FUNCTION.
    Used for C++ multiple inheritance.  */
-
+/* ??? This is only used with the v2 ABI, and alpha.c makes assumptions
+   about current_function_is_thunk that are not valid with the v3 ABI.  */
+#if 0
 #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION)	\
 do {									\
   const char *fn_name = XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0);	\
@@ -2268,6 +2270,7 @@ do {									\
     }									\
   fprintf (FILE, "\t.set noat\n");					\
 } while (0)
+#endif
 
 
 /* Define results of standard character escape sequences.  */
diff --git a/gcc/config/alpha/alpha32.h b/gcc/config/alpha/alpha32.h
index fff442e12499..821427982814 100644
--- a/gcc/config/alpha/alpha32.h
+++ b/gcc/config/alpha/alpha32.h
@@ -81,7 +81,9 @@ Boston, MA 02111-1307, USA.  */
 
 /* Output code to add DELTA to the first argument, and then jump to FUNCTION.
    Used for C++ multiple inheritance.  */
-
+/* ??? This is only used with the v2 ABI, and alpha.c makes assumptions
+   about current_function_is_thunk that are not valid with the v3 ABI.  */
+#if 0
 #undef ASM_OUTPUT_MI_THUNK
 #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION)	\
 do {									\
@@ -102,3 +104,4 @@ do {									\
   assemble_name (FILE, fn_name);					\
   fputc ('\n', FILE);							\
 } while (0)
+#endif