buildworld, buildkernel, and devel/cache

[Scott Bennett]

     I am now running FreeBSD 10.1-STABLE (amd64) r277396 and have
installed devel/ccache.  In /etc/make.conf I have

WITH_CCACHE_BUILD=yes
CCACHE_CPP2=1

In /etc/src.conf I have

WITH_LLDB=

In /root/.profile I have

CCACHE_DIR=/buildwork/ccache
export PATH=/usr/local/libexec/ccache:$PATH
export CCACHE_PATH=/usr/bin:/usr/local/bin

In /root/.cshrc.extensions, a file I source from /root/.cshrc, I have

setenv CCACHE_DIR /buildwork/ccache
setenv PATH /usr/local/libexec/ccache:$PATH
setenv CCACHE_PATH /usr/bin:/usr/local/bin

     ccache seems to be working just fine for building ports with portmaster,
but I don't see any evidence that either "make buildworld" or "make
buildkernel" make any use of ccache at all.  I've searched the archives for
several FreeBSD lists, but haven't turned up anything helpful.  If someone
knows what I need to do to get ccache involved in buildworld and buildkernel,
would you share it here please?  I would very much like to reduce the times
for those builds.  Also, if so, please Cc me directly because I'm currently
subscribed only to the digest form of these lists, which means I may not
see responses until the digest arrives, which is often a day or more after
a followup is posted.
     Thanks greatly for any help on this!


                                  Scott Bennett, Comm. ASMELG, CFIAG
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