K 10
svn:author
V 8
bdrewery
K 8
svn:date
V 27
2015-12-07T16:08:22.913326Z
K 7
svn:log
V 451
FAST_DEPEND: Only pass -MF if we care about the object being compiled.

This will save time generating dependency files that we didn't expect
due to cases where SRCS!=OBJS or for building custom targetted objects
in Makefiles that do not end up in the DEPENDOBJS list.

This uses a bmake trick to modify CFLAGS based on ${.TARGET}.  A
.PARSEDIR check is done for the sake of MFC safety.

MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division

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