Re: [Qemu-devel] [PATCH] makefile: detect corrupted elf files

[Paolo Bonzini]

Il 22/05/2013 11:42, Michael S. Tsirkin ha scritto:
> On Wed, May 22, 2013 at 11:22:52AM +0200, Paolo Bonzini wrote:
>> Il 22/05/2013 10:52, Michael S. Tsirkin ha scritto:
>>> The fix is simple here: don't use ccache.  I don't.
>>>
>>> In fact, from what I saw people use ccache to work around makefile bugs,
>>> so they can do make clean; make and have it finish quickly.
>>>
>>> Any other examples?
>>
>> Testing configure patches should be done (also) from a clean build
>> directory, for example.
>>
>> Paolo
> 
> In fact, relying on make clean for testing the build
> system is a mistake.  It's easy for it to forget to
> remove some temporary file. You really should do
> a clean clone.

Yes, I use a clean clone (and a clean build directory for each patch),
_hence_ ccache helps reducing test times.

Paolo