K 10
svn:author
V 3
sjg
K 8
svn:date
V 27
2016-04-18T20:56:21.115565Z
K 7
svn:log
V 340
Update dirdeps.mk et al

dirdeps.mk: move logic to handle -f dirdeps.mk to inside check
for first read of dirdeps.mk

Also fix handling of WITHOUT_DIRDEPS_BELOW

gendirdeps.mk: pass M2D_EXCLUDES to meta2deps

meta.autodep.mk: if we build with nofilemon, leave a cookie to
prevent updating dependencies until cleaned.

Reviewed by:	bdrewery

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