MK_ vs. WITH_/WITHOUT_ in release/Makefile

Hi all,

release/Makefile in CURRENT utilizes MK_* knobs vs. the WITH_/WITHOUT_*
knobs seen in release/Makefile in the STABLE/RELEASE branches.  Merging a
CURRENT version of the Makefile into a RELEASE branch and executing a
release build results in an error citing "MK_KERNEL_SYMBOLS can't be set by
a user".  Comparisons of the Makefile between CURRENT and STABLE/RELEASE
exposed the difference and changing the knobs from MK_ to WITHOUT_ resolved
the error.

I have little familiarity with these knobs, but was under the impression
the Makefile would not differ like this.  Is there documentation describing
the use of these knobs between the varying branches and how they are
changed from CURRENT to STABLE/RELEASE?


-- 
Take care
Rick Miller