These checks are already performed in wx/chkconf.h and don't need to be redone here, especially incorrectly (testing for "!wxUSE_FILESYSTEM" inside "#if wxUSE_FILESYSTEM" is useless).
These checks are already performed in wx/chkconf.h and don't need to be redone here, especially incorrectly (testing for "!wxUSE_FILESYSTEM" inside "#if wxUSE_FILESYSTEM" is useless).