On Fri, Nov 9, 2012 at 7:04 AM, Bjoern Michaelsen
<bjoern.michaelsen@canonical.com> wrote:
Hi,
so the way gbuild generates dependencies prevents ccache to be confident about
using its cache most of the time. To see this: do a/ build b/ make clean
c/build from an empty ccache dir once with and without dep-tracking.
1/ presumably, now-a-day with everything under gbuild, the dep
tracking should be fairly reliable, hence rending ccache less
relevant. It might be that we should not auto-enable ccache when
dep-tracking is enabled.
2/ that problem seems to me related to switching dep-tracink between
build... that is a very limited corner case that is not worth
optimizing, especially not at the expense of complexity and overhead
to the common cases. iow: if it hurt when you do it... stop doing it
:-)
Norbert
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