first define Windows symbols if they're not defined on the command line: we
can autodetect everything we need if _WIN32 is defined
*/
-#if defined(_WIN32) || defined(WIN32) || defined(__NT__)
+#if defined(_WIN32) || defined(WIN32) || defined(__NT__) || defined(__WXWINCE__)
#ifndef __WXMSW__
#define __WXMSW__
#endif