diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 735c47d05..a955e67f9 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+Mon May 15 18:54:00 2000  Jeff Johnston  <jjohnstn@cygnus.com>
+
+	* libc/include/ctype.h: Changed tolower and toupper macros
+	to use __extension__ to prevent pedantic warnings.
+
 Mon May 15 14:26:00 2000  Joel Sherrill  <joel@oarcorp.com>
 
 	* libc/sys/rtems/sys/time.h: Add macros for manipulating timeval
diff --git a/newlib/libc/include/ctype.h b/newlib/libc/include/ctype.h
index 224b703ad..7c4f28adf 100644
--- a/newlib/libc/include/ctype.h
+++ b/newlib/libc/include/ctype.h
@@ -57,9 +57,9 @@ extern	_CONST char	_ctype_[] __declspec(dllimport);
    slightly slower */
 #ifdef __GNUC__
 # define toupper(c) \
-	({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
+	__extension__ ({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
 # define tolower(c) \
-	({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
+	__extension__ ({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
 #endif
 
 #ifndef __STRICT_ANSI__