+#if !defined WXARC_NO_POPEN && !defined __WXMSW__
+ // If have popen then can check the piped output of 'zip - -'.
+ // The gnuwin32 build of infozip does work for this, e.g.:
+ // C:\>echo test data to pipe through zip | zip -q > foo.zip
+ // doesn't produce a valid zip, so disabled for now.