diff --git a/ChangeLog.tile b/ChangeLog.tile
index 183118a690..dbc6611b26 100644
--- a/ChangeLog.tile
+++ b/ChangeLog.tile
@@ -1,3 +1,7 @@
+2012-05-15  Chris Metcalf  <cmetcalf@tilera.com>
+
+	* sysdeps/tile/bits/fenv.h (__FE_UNDEFINED): New symbol.
+
 2012-05-15  Chris Metcalf  <cmetcalf@tilera.com>
 
 	* sysdeps/tile/ldsodefs.h (ARCH_PLTEXIT_MEMBERS): Add proper
diff --git a/sysdeps/tile/bits/fenv.h b/sysdeps/tile/bits/fenv.h
index a6e0233f1a..7638e8cc50 100644
--- a/sysdeps/tile/bits/fenv.h
+++ b/sysdeps/tile/bits/fenv.h
@@ -28,6 +28,8 @@
    floating-point support also acts this way.  */
 enum
   {
+    __FE_UNDEFINED = 0,
+
     FE_TONEAREST = 1,
 #define FE_TONEAREST	FE_TONEAREST
   };