Re: [Xen-devel] [PATCH v5 11/14] autoconf: xen: move standard variables to a generic place

["Luis R. Rodriguez" <mcgrof@xxxxxxxx>]

On Tue, May 20, 2014 at 07:37:53AM -0600, Jan Beulich wrote:
> >>> On 20.05.14 at 14:31, <mcgrof@xxxxxxxxxxxxxxxx> wrote:
> > --- a/config/StdGNU.mk
> > +++ b/config/StdGNU.mk
> > @@ -1,3 +1,17 @@
> > +# These are standard defaults which you can use to avoid having
> > +# to run ./configure -- you can use this to compile the hypervisor
> > +# and the mini os:
> > +#
> > +# make xen
> > +# sudo make -C xen install
> > +#
> > +# make -C extras/mini-os
> > +include $(XEN_ROOT)/config/defaults.mk
> > +
> > +# This comes from running configure and will override
> > +# the defaults.
> > +-include $(XEN_ROOT)/config/Toplevel.mk
> 
> So what is the result of running one of the above make invocations
> without having run ./configure, then running ./configure before
> running the same make invocation (for an incremental update)
> again?

In my last v4 you pointed out two targets which you wished to
ensure would not require running configure, both of those targets:

make xen -j $(getconf _NPROCESSORS_ONLN)
make -C extras/mini-os -j $(getconf _NPROCESSORS_ONLN)

I have ensured this in this series and the above change indeed
is what you were looking for.

> > --- /dev/null
> > +++ b/config/defaults.mk
> > @@ -0,0 +1,21 @@
> > +# Build system defaults, in case you never ran ./configure, this is
> > +# supported to be able to build the xen hypervisor and the mini os:
> > +#
> > +# make xen
> > +# sudo make -C xen install
> > +#
> > +# make -C extras/mini-os
> > +PREFIX ?= /usr
> 
> Presumably this is meant to retain the previous setting from
> StdGNU.mk, but being tree-wide this then is kind of in conflict with
> the tools default of /usr/local 

It would seem that way but ./configure is required to compile tools
and /usr/local/ is actually preserved as the default for tools if no
prefix is specifified, just as before.

> (and I think with the switch to the
> latter StdGNU.mk should have been switched too).
> 
> Also you appear to be ignoring the similar settings done in
> SunOS.mk.

Can someone with a Solaris box test the above similar changes?

  Luis

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