uniformity in defining basic SDK images?

reading YP kernel dev manual and section 2.5.1 contains the
following passage:

"Briefly, the kernel-dev package is installed by default on all *.sdk images... Because all SDK image recipes include dev-pkgs, the kernel-dev packages will be installed as part of the SDK image."

first, if that's true, then it's redundant to incorporate both the
image feature of dev-pkgs *and* the image install of kernel-dev, as is done in images like core-image-rt-sdk.bb:

IMAGE_FEATURES += "dev-pkgs tools-sdk tools-debug eclipse-debug tools-profile tools-testapps debug-tweaks"

IMAGE_INSTALL += "rt-tests hwlatdetect kernel-dev"

additionally, the core-image-sato-sdk.bb recipe file is alone in
including:

IMAGE_INSTALL += "kernel-devsrc"

is there a reason that that core-image sdk recipe alone includes kernel-devsrc while the others do not?

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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