With BUILD_LOG on each package stores compilation output in a separate
file. This allows us to make the jenkins console log output quieter
without losing the compilation logs.
Build like this for a general overview on tty, as well as excessive detail for
each package in the logs folder:
make -j8 V=sc | tee logs/build.log | stdbuf -oL grep -i -E "^make.*(error|[[[:digit:]]])"
Approved-by: James Haggerty
Approved-by: Lyall Beveridge