Do not #define __WIN95__, __WINDOWS__, __WXMSW__ on the command line for Cygwin/MinGW (when build with makefiles), since platform.h already does that for us. Always check for __WIN32__, not for WIN32 or _WIN32 (just for consistency). git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18793 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775