+// some compilers (e.g. Sun CC) give warnings when treating string literals as
+// (non const) "char *" but many Motif functions take "char *" parameters which
+// are really "const char *" so use this macro to suppress the warnings when we
+// know it's ok
+#define wxMOTIF_STR(x) wx_const_cast(char *, x)
+