diff --git a/include/ChangeLog b/include/ChangeLog
index 6f570ac95f5..c49acf04d86 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+2000-08-24  Greg McGary  <greg@mcgary.org>
+
+	* libiberty.h (ARRAY_SIZE): New macro.
+
 2000-08-08  Jason Eckhardt  <jle@cygnus.com>
 
 	* opcode/i860.h: Small formatting adjustments.
diff --git a/include/libiberty.h b/include/libiberty.h
index 476e0165b3e..e6eb34739ce 100644
--- a/include/libiberty.h
+++ b/include/libiberty.h
@@ -200,6 +200,8 @@ extern int asprintf PARAMS ((char **, const char *, ...)) ATTRIBUTE_PRINTF_2;
 extern int vasprintf PARAMS ((char **, const char *, va_list))
   ATTRIBUTE_PRINTF(2,0);
 
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
+
 #ifdef __cplusplus
 }
 #endif