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Re: how to use ccache?
On Mon, 31 Aug 2009 09:58:16 -0400
Greg Troxel <gdt%ir.bbn.com@localhost> wrote:
> I see reading mk/compiler/ccache.mk that this is documented. But it
> seems like a very strange default.
There is no obvious default value I guess. We could (should?) issue a
warning if CCACHE_DIR is unset.
> What is the recommended setting for CCACHE_DIR? How does one manage a
> shared cache for builds as me vs root? Or is the thinking that reading
> a root ache as me is a disclosure vulnerability and writing a root cache
> an integrity vulnerability?
You local fast filesystem of choice. For the sharing problem, I think
you can use CCACHE_UMASK (see ccache (1)) as long as the security
implications are understood.
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