diff -r 10421720b8ae -r cb341c55f6e8 documentation/common_mmh.pod
--- a/documentation/common_mmh.pod	Thu Jul 29 13:16:17 2010 +1000
+++ b/documentation/common_mmh.pod	Thu Jul 29 14:11:57 2010 +1000
@@ -218,6 +218,10 @@
 
 The TestExecute APIs are available.
 
+=item FSHELL_[NO_]ARMCC_DIAG_SUPPRESS_SUPPORT
+
+Defines whether ARM's RVCT compiler supports a C<--diag-supress> option (older versions appear not to), and hence whether fshell's build will try to use it.
+
 =back
 
 A couple of further macros follow - these are specifically for platforms that provide an custom implementation of the relevant command rather than using fshell's built-in version.