anchor.diff:        (feat "numactl" isLinux)
         (feat "numad" isLinux)
         (feat "pciaccess" isLinux)
  -      (feat "polkit" true)
  +      (feat "polkit" isLinux)
         (feat "readline" true)
         (feat "secdriver_apparmor" isLinux)
         (feat "tests" true)
  
positive.code:         --replace "ggrep" "grep"
  
        substituteInPlace src/util/virpolkit.h \
          --replace '"/usr/bin/pkttyagent"' '"${polkit.bin}/bin/pkttyagent"'
  
        patchShebangs .
      ''
  
negative.code:     sed -i '0,/qemuxml2argvtest/{/qemuxml2argvtest/d;}' tests/meson.build
    '' + optionalString isDarwin ''
      sed -i '/qemucapabilitiestest/d' tests/meson.build
      sed -i '/vircryptotest/d' tests/meson.build
    '';
  
  
  