On Wed, Sep 23, 2020 at 12:03:23PM +0100, Anthony PERARD wrote:
> QEMU as recently switch its build system to use meson and the
> ./configure step with meson is more restrictive that the step used to
> be, most installation path wants to be within prefix, otherwise we
> have this error message:
> 
>     ERROR: The value of the 'datadir' option is '/usr/share/qemu-xen' which 
> must be a subdir of the prefix '/usr/lib/xen'.
> 
> In order to workaround the limitation, we will set prefix to the same
> one as for the rest of Xen installation, and set all the other paths.
> 
> For reference, a thread in qemu-devel:
>     "configure with datadir outside of --prefix fails with meson"
>     
> https://lore.kernel.org/qemu-devel/[email protected]/t/
> 
> And an issue in meson:
>     "artificial limitation of directories (forced to be in prefix)"
>     https://github.com/mesonbuild/meson/issues/2561
> 
> Signed-off-by: Anthony PERARD <[email protected]>
> ---
> 
> I've tested the change with an oldish QEMU, qemu-xen-4.12, and the
> layout of the tarball generated by osstest doesn't change.

Acked-by: Wei Liu <[email protected]>

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