Re: [qemu-s390x] [PATCH v2 1/2] make: move generated headers to qemu-build/

[Daniel P . Berrangé]

On Thu, Mar 22, 2018 at 09:27:55PM +0200, Michael S. Tsirkin wrote:
> Make sure all generated files go into qemu-build subdirectory.
> We can then include them like this:
>  #include "qemu-build/trace.h"
> 
> This serves two purposes:
> - make it easy to detect which files are in the source
>   directory (a bit more work for writers, easier for readers)
> - reduce chances of conflicts with possible stale files in source
>   directory (which could be left over from e.g. old patches, etc)

If people care about this, then they can just be doing a build
with  srcdir != builddir config.  If people are using srcdir == builddir
then they likely *want* all the generated files in their srcdir.

IMHO it would be valid for us to consider if we could just mandate
srcdir != builddir, but if people object to such a proposal, then I
don't think we should arbitrarily move all generated source files
in this way, as that's effectively the same thing forced onto devs.

Regards,
Daniel
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