From Magnus Kessler, "After a closer look at this particular issue, I used some grep and sed magic

to fix all occurrences of "macro's" and "paramter".
"

include/osg/CullFace

@@ -45,13 +45,13 @@ class OSG_EXPORT CullFace : public StateAttribute
         virtual int compare(const StateAttribute& sa) const
         {
             // check the types are equal and then create the rhs variable
-            // used by the COMPARE_StateAttribute_Parameter macro's below.
+            // used by the COMPARE_StateAttribute_Parameter macros below.
             COMPARE_StateAttribute_Types(CullFace,sa)
 
             // compare each parameter in turn against the rhs.
             COMPARE_StateAttribute_Parameter(_mode)
 
-            return 0; // passed all the above comparison macro's, must be equal.
+            return 0; // passed all the above comparison macros, must be equal.
         }
 
         virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const