[ccache] Build problem of qemu>=2.0 when using ccache.

[Joel Rosdahl]

> Does it work if you disable ccache's direct mode, i.e. if you build with
CCACHE_DIRECT=0?

Sorry, that should have been CCACHE_NODIRECT=1.

-- Joel



On 9 August 2014 10:59, Joel Rosdahl <joel at rosdahl.net> wrote:

> Hi,
>
> > Completely disabling ccache makes the build proceed correctly. Cleaning
> the
> > ccache caches doesn't help.
>
> Does it work if you disable ccache's direct mode, i.e. if you build with
> CCACHE_DIRECT=0?
>
> -- Joel
>
>
> On 7 August 2014 12:14, marcin kowalski <yoshi314 at gmail.com> wrote:
>
>> Hi all, i (and another user) have been experiencing odd issues when
>> building qemu-2.0 or 2.1 with ccache enabled. Systems in question are
>> gentoo, 64bit installations with differing gcc versions.
>>
>> Basically, it seems that build directory is missing some source files, or
>> some preprocessing stage before actual compilation is adversely affected
>> by
>> ccache - some source files are not placed where build rules are expecting
>> them to be, so this does not look like simple cache corruption issue.
>>
>> Build logs and some more information are available here :
>> https://bugs.gentoo.org/show_bug.cgi?id=512484
>>
>> Completely disabling ccache makes the build proceed correctly. Cleaning
>> the
>> ccache caches doesn't help.
>>
>> I'd like to know how can i more closely narrow down the problem in
>> question, since debugging ccache/compilers is not something i am familiar
>> with.
>>
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>>
>>
>