[yocto] purpose of "README.sources" file, and why does meta-intel have one?

[Robert P. J. Day]

  still in BSP Guide:

    "Note
      If the BSP's binary directory is missing or the directory has no
      images, an existing README.sources file is meaningless."

yet the meta-intel layer has that file but no binary/ directory, so is
the above the proper explanation of README.sources?

  i have about 20 layers checked out, and *very* few of them have a
README.sources file although, to be fair, they also don't have
"binary" directories. it seems like not a lot of layers take advantage
of that feature.

rday

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

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