diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7b10f811f174..16e0d12ba0c6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Sat Nov 13 16:20:09 1999  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+	* defaults.h (ASM_OUTPUT_ALTERNATE_LABEL_NAME): Wrap macro
+ 	definition in do while (0).
+
 Fri Nov 12 16:26:25 1999  Jim Wilson  <wilson@cygnus.com>
 
 	* stmt.c (pushcase, pushcase_range): Partially revert Oct 28 change.
diff --git a/gcc/defaults.h b/gcc/defaults.h
index 6b42fe106901..c4d1a60aedde 100644
--- a/gcc/defaults.h
+++ b/gcc/defaults.h
@@ -57,7 +57,7 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
 /* Provide default for ASM_OUTPUT_ALTERNATE_LABEL_NAME.  */
 #ifndef ASM_OUTPUT_ALTERNATE_LABEL_NAME
 #define ASM_OUTPUT_ALTERNATE_LABEL_NAME(FILE,INSN) \
-  ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN))
+do {ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN))} while (0)
 #endif
 
 /* choose a reasonable default for ASM_OUTPUT_ASCII.  */