• Brad King's avatar
    Restore KWSys SystemTools _WIN32 state on cygwin · f10929ae
    Brad King authored
    The commit "Fix KWSys SystemTools build on cygwin with -mwin32" tried to
    restore the state of the _WIN32 definition that was broken by the commit
    "Optimize KWSys SystemTools::FileExists on Windows".  It did so for the
    case of building with -mwin32 on cygwin, but since including <windows.h>
    defines _WIN32, it failed for the case of not using -mwin32.
    This commit restores the state of _WIN32 in all cases by undefining it
    after including <windows.h> if it was not defined beforehand.