[Buildroot] CCACHE accross multiple buildroot projects

[Heiko Thiery]

Meanwhile I figured out a stange issue. I have 4 different buildroot
projects with different workspaces but all of them use the same ccache
directory. These workspaces are cleaned in a scheduled interval. Then
it can happen that a new build will fail because of some pathes in
dependency files are pointing to files in other a cleaned workspace.

2017-06-20 19:21 GMT+02:00 Adrian Perez de Castro <aperez at igalia.com>:
> On Tue, 20 Jun 2017 18:04:12 +0200, "Yann E. MORIN" <yann.morin.1998 at free.fr> wrote:
>> Heiko, All,
>>
>> On 2017-06-19 15:57 +0200, Heiko Thiery spake thusly:
>> > is it allowed to use CCACHE accross several projects (all the same
>> > architecture)?
>>
>> Normally, ccache hashes a few things to ensure that it does not re-use
>> incompatible obkects. It should be safe.
>
> It is, I routinely find myself having 3-4 different Buildroot work trees, all
> pointing ccache to the same directory in the file system. If you target the
> same architecture in more than one work tree, builds can sometimes be faster
> when the same versions of the same files are used by different work trees.
>
> Cheers,
>
> --
>  Adrián 🎩