usage: meson [-h]
             {setup,configure,dist,install,introspect,init,test,wrap,subprojects,rewrite,compile,devenv,env2mfile,reprotest,format,fmt,help}
             ...
meson: error: unrecognized arguments: --Dx11=enabled
Traceback (most recent call last):
  File "/var/pisi/libxfce4windowing/actions.py", line 19, in setup
    -Dgtk-doc=true")
  File "/usr/lib/pisilinux/pisi/actionsapi/mesontools.py", line 63, in configure
    if system('meson setup %s %s %s' % (default_parameters, parameters, build_dir)):
  File "/usr/lib/pisilinux/pisi/actionsapi/shelltools.py", line 255, in system
    error(_("Command \"%s\" failed, return value was %d.") % (command, retValue))
  File "/usr/lib/pisilinux/pisi/actionsapi/__init__.py", line 27, in error
    raise Error(msg)
pisi.actionsapi.Error: Command "meson setup --prefix=/usr --bindir=/usr/bin --datadir=/usr/share --includedir=/usr/include --infodir=/usr/share/info --libdir=/usr/lib --libexecdir=/usr/libexec --localedir=/usr/share/locale --localstatedir=/var --mandir=/usr/share/man --sbindir=/usr/sbin --sharedstatedir=com --sysconfdir=/etc --default-library=shared --Dx11=enabled -Dwayland=enabled -Dvala=enabled -Dgtk-doc=true build" failed, return value was 2.
Action script error caught.
*** 1 error(s), 0 warning(s)
Program terminated.