diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8099c362543e..edad32fcdf25 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2007-11-27  Ben Elliston  <bje@au.ibm.com>
+
+	* config/rs6000/sysv4.opt (m32): Add Negative(m64).
+	(m64): Add Negative(m32).
+	* config/rs6000/darwin.opt (m32): Add Negative(m64).
+	(m64): Add Negative(m32).
+
 2007-11-26  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* tree-ssa-propagate.c (set_rhs) <GIMPLE_MODIFY_STMT>: Fix typo.
diff --git a/gcc/config/rs6000/darwin.opt b/gcc/config/rs6000/darwin.opt
index e47bb36aa51a..ff9be36eef82 100644
--- a/gcc/config/rs6000/darwin.opt
+++ b/gcc/config/rs6000/darwin.opt
@@ -20,11 +20,11 @@
 ; <http://www.gnu.org/licenses/>.
 
 m64
-Target RejectNegative Mask(64BIT)
+Target RejectNegative Negative(m32) Mask(64BIT)
 Generate 64-bit code
 
 m32
-Target RejectNegative InverseMask(64BIT)
+Target RejectNegative Negative(m64) InverseMask(64BIT)
 Generate 32-bit code
 
 mdynamic-no-pic
diff --git a/gcc/config/rs6000/sysv4.opt b/gcc/config/rs6000/sysv4.opt
index e988ada18f89..ba0bc65a23e8 100644
--- a/gcc/config/rs6000/sysv4.opt
+++ b/gcc/config/rs6000/sysv4.opt
@@ -128,11 +128,11 @@ Target RejectNegative
 no description yet
 
 m64
-Target Report RejectNegative Mask(64BIT)
+Target Report RejectNegative Negative(m32) Mask(64BIT)
 Generate 64-bit code
 
 m32
-Target Report RejectNegative InverseMask(64BIT)
+Target Report RejectNegative Negative(m64) InverseMask(64BIT)
 Generate 32-bit code
 
 mnewlib