diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index b8b1905a0..4c456470d 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,8 @@
+2003-08-13  Jeff Johnston  <jjohnstn@redhat.com>
+
+	* libc/include/math.h: Add prototypes for __signbitf and
+	__signbitd.
+
 2003-07-31  Jeff Johnston  <jjohnstn@redhat.com>
 
 	* libc/ctype/iswalpha.c: Fix calls to __jp2uc to pass the
diff --git a/newlib/libc/include/math.h b/newlib/libc/include/math.h
index 1be7511dc..dbbae0048 100644
--- a/newlib/libc/include/math.h
+++ b/newlib/libc/include/math.h
@@ -81,6 +81,8 @@ typedef double double_t;
 
 extern int __fpclassifyf (float x);
 extern int __fpclassifyd (double x);
+extern int __signbitf (float x);
+extern int __signbitd (double x);
 
 #define fpclassify(x) \
           (__extension__ ({__typeof__(x) __x = (x); \