[OE-core] why does "bitbake -e" check the license of a *non*-included recipe file?

[Robert P. J. Day]

  goofing around with "bitbake -e" and, with a clean oe-core checkout,
both of the following work:

$ bitbake -e
$ bitbake -e core-image-core

  now, just for fun, i added a trivial recipe file to that images/
directory to see what kind of error message i would get if i neglected
to include a license, so i added the rday.bb recipe file (one of the
files i was using to test assignment):

RDAY ??= "rday1"
RDAY ??= "rday2"
RDAY ?= "rday3"

then tested:

$ bitbake -e rday
Loading cache: 100% |######################################################################| ETA:  00:00:00
Loaded 1106 entries from dependency cache.
ERROR: This recipe does not have the LICENSE field set (rday)                              | ETA:  --:--:--
ERROR: Unable to parse /home/rpjday/oe/oe-core/meta/recipes-core/images/rday.bb: Exited with "1"
ERROR: Command execution failed: Exited with 1

Summary: There were 3 ERROR messages shown, returning a non-zero exit code.
$

so that's pretty much what i expected.  what i *didn't* expect was
that this would still work:

$ bitbake -e

while this would now fail:

$ bitbake -e core-image-core
Loading cache: 100% |######################################################################| ETA:  00:00:00
Loaded 1106 entries from dependency cache.
ERROR: This recipe does not have the LICENSE field set (rday)                              | ETA:  --:--:--
ERROR: Unable to parse /home/rpjday/oe/oe-core/meta/recipes-core/images/rday.bb: Exited with "1"
ERROR: Command execution failed: Exited with 1

Summary: There were 3 ERROR messages shown, returning a non-zero exit code.
$

  the recipe file "rday.bb" is not being included in any of the other
images, so why should its lack of a license file cause that kind of
problem?

rday

-- 

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

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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