#endif
// NB: Some compilers define boolean type in Windows headers
-// (e.g. Watcom C++, but not Open Watcom).
+// (e.g. Watcom C++, but not some Open Watcom versions).
// This causes a conflict with jmorecfg.h header from libjpeg, so we have
// to make sure libjpeg won't try to define boolean itself. This is done by
// defining HAVE_BOOLEAN.
-#if defined(__WXMSW__) && (defined(__MWERKS__) || defined(__DIGITALMARS__))
+#if defined(__WXMSW__) && (defined(__MWERKS__) || defined(__DIGITALMARS__) || \
+ (defined(__WATCOMC__) && !wxONLY_WATCOM_EARLIER_THAN(1,6)))
#define HAVE_BOOLEAN
#include "wx/msw/wrapwin.h"
#endif