anchor.diff:        (cfg "runstatedir" "/run")
   
         (cfg "init_script" (if isDarwin then "none" else "systemd"))
  +      (cfg "qemu_datadir" (if isDarwin then "${qemu}/share/qemu" else ""))
   
         (feat "apparmor" isLinux)
         (feat "attr" isLinux)
  
positive.code:   # Darwin
  , gmp
  , libiconv
  , Carbon
  , AppKit
  
  
negative.code:   '' + optionalString isDarwin ''
      sed -i '/qemucapabilitiestest/d' tests/meson.build
      sed -i '/vircryptotest/d' tests/meson.build
      sed -i '/domaincapstest/d' tests/meson.build
      sed -i '/qemufirmwaretest/d' tests/meson.build
      sed -i '/qemuvhostusertest/d' tests/meson.build
    '' + optionalString (isDarwin && isx86_64) ''
      sed -i '/qemucaps2xmltest/d' tests/meson.build
      sed -i '/qemuhotplugtest/d' tests/meson.build
  