Re: [Xen-devel] [PATCH 3/4] README: document that `python` is required

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, May 13, 2019 at 08:27:16AM -0600, Jan Beulich wrote:
> >>> On 13.05.19 at 15:47, <wei.liu2@xxxxxxxxxx> wrote:
> > --- a/README
> > +++ b/README
> > @@ -181,6 +181,10 @@ Various tools, such as pygrub, have the following 
> > runtime dependencies:
> >            URL:    http://www.python.org/ 
> >            Debian: python
> >  
> > +Note that the build system expects `python` to be available. If your system
> > +only has `python2` or `python3` but not `python` (as in Linux From 
> > Scratch),
> > +you will need to create a symlink for it.
> 
> Is creating a symlink indeed the only option? What about specifying
> PYTHON= on the make cmdline? I don't mean to say the set of
> workarounds needs to be exhaustive here, but perhaps add at
> least "e.g." if there are other options as well?

Xen's build system is strange in that

   make A=B

is not the same as 

   A=B make

.

In practice this has bitten a few people in the past. That's why I opted
to not mention that variant.

But since you ask, I can add it to next version.

Wei.

> 
> Jan
> 
> 

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