http://bugs.motifzone.net/showattachment.cgi?attach_id=259
http://bugs.motifzone.net/long_list.cgi?buglist=1479

Extend the patch to include guard for sun to solve the exact same
compilation issue on Solaris.

--- openmotif-2.3.2.org/clients/uil/UilDefI.h	2004-11-18 08:54:32.000000000 +0000
+++ openmotif-2.3.2/clients/uil/UilDefI.h	2009-11-08 13:24:29.000000000 +0000
@@ -283,7 +283,7 @@
 #include "UilIODef.h"
 #include "UilDiagDef.h"
 #include "UilSarDef.h"
-#if defined(linux)
+#if defined(linux) || defined(__APPLE__) || defined(sun)
 #define YYSTYPE yystype
 #endif
 #include "UilLexPars.h"