K 10
svn:author
V 3
sjg
K 8
svn:date
V 27
2015-05-26T21:41:26.876246Z
K 7
svn:log
V 157
Define SRCTOP in src.sys.mk

Use SRCTOP to replace .../ in MAKSYSPATH (avoid extra :tA)
Use SRCTOP rather than ROOTSRCDIR in src.libnames.mk
Merge from head

END