anchor.diff:        sed -i -r \
           -e 's/-f(stack-protector)(-all)?/-fno-\1/' \
           -e 's|/bin/echo|echo|' \
  +        -e "/python_arch/s/: *'[^']*'/: '""'/" \
           build/common.gypi
         sed -i '/not RunGN/,+1d' build/gyp_chromium
         sed -i -e 's|/usr/bin/gcc|gcc|' \
  
positive.code: , libusb1, libexif, pciutils
  
  , python, pythonPackages, perl, pkgconfig
  , nspr, udev, krb5, file
  , utillinux, alsaLib
  , gcc, bison, gperf
  , glib, gtk, dbus_glib
  
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
  