anchor.diff:  , libusb1, libexif, pciutils
   
   , python, pythonPackages, perl, pkgconfig
  -, nspr, udev, krb5, file
  +, nspr, udev, krb5
   , utillinux, alsaLib
   , gcc, bison, gperf
   , glib, gtk, dbus_glib
  
positive.code:       sed -i -r \
          -e 's/-f(stack-protector)(-all)?/-fno-\1/' \
          -e 's|/bin/echo|echo|' \
          build/common.gypi
        sed -i '/not RunGN/,+1d' build/gyp_chromium
        sed -i -e 's|/usr/bin/gcc|gcc|' \
  
negative.code:     nspr udev
      (if useOpenSSL then openssl else nss)
      utillinux alsaLib
      gcc bison gperf krb5
      glib gtk dbus_glib
      libXScrnSaver libXcursor libXtst mesa
      pciutils protobuf speechd libXdamage
  