- where only g++ and MSVC >= 7 currently support it, for the others it will be
- undefined in wx/chkconf.h).
+ where only g++ and MSVC >= 7 currently support it.
+
+ Recent Sun CC versions support this but perhaps older ones can compile this
+ code too, adjust the version check if this is the case (unfortunately we
+ can't easily test for the things used in wx/event.h in configure so we have
+ to maintain these checks manually). The same applies to xlC 7: perhaps
+ earlier versions can compile this code too but they were not tested.