[PATCH v1 1/1] Makefile.lib: Always rebuild DSDT

[Andy Shevchenko]

On Mon, Oct 25, 2021 at 09:52:45PM +0300, Andy Shevchenko wrote:
> On Mon, Oct 25, 2021 at 09:18:56AM -0600, Simon Glass wrote:
> > On Mon, 25 Oct 2021 at 01:34, Andy Shevchenko <andy.shevchenko at gmail.com> wrote:
> > > On Sun, Oct 24, 2021 at 11:00 PM Simon Glass <sjg at chromium.org> wrote:
> > > > On Wed, 20 Oct 2021 at 06:37, Andy Shevchenko
> > > > <andriy.shevchenko at linux.intel.com> wrote:
> > > > >
> > > > > The dsdt.asl is usually combined out of several files that are included
> > > > > in the main one. Whenever we change the content of any of such files,
> > > > > build system is not able to recognize them. Hence the easiest way is to
> > > > > force DSDT rebuild each time we run make.
> > >
> > > > Ick. Since it uses #include, doesn't the dependency generation work with this?
> > >
> > > How?
> > 
> > If you do a sandbox build you will see this file:
> > 
> > arch/sandbox/dts/.sandbox.dtb.cmd
> > 
> > It contains the dependencies used to compile the device tree. Can we
> > use the same mechanism? There is a .cmd file for the dsdt file but it
> > does not seem to have the correct contents.
> 
> A spent more than couple of hours to fight with `make` and failed.
> Maybe you can improve the below (it still rebuilds always)

So, can we fix this annoying bug, please?

-- 
With Best Regards,
Andy Shevchenko