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Re: [Xen-devel] [PATCH VTPM v3 00/10] Remaining vtpm patches

On Mon, 2012-11-19 at 15:09 +0000, Matthew Fioravante wrote:
> On 11/19/2012 10:06 AM, Ian Campbell wrote:
> > On Mon, 2012-11-19 at 14:02 +0000, Matthew Fioravante wrote:
> >> Another option also would be to remove vtpm-stubdom and vtpmmgrdom from
> >> the stubdom install target. This would make them optional components and
> >> then cmake becomes an optional dependency.
> > If we were to do this then we'd probably want to add it as an option
> > configure.ac and plumb it through etc. Wecould make it autodetect cmake
> > and build if it can.
> >
> > Actually, even if we don't do this then configure.ac needs to check for
> > cmake as well as updating the README.
> I was under the assumption that configure.ac was only for building 
> tools, not stubdoms.

Yes, that's true.

>  Still an additional cmake check to configure.ac 
> might not be a bad idea.

Another option would be to add stubdom/configure.ac I suppose. We were
considering something like that for the docs subtree for example.

> >  From the other mail:
> >>> Looks like we've grown a dependency on cmake. I vaguely recall
> >>> discussing before, can you remind me if this is a hard requirement on
> >>> the end user system or not.
> >> Unfortunately it is a hard requirement. Its used to pass the stubdom
> >> build flags to the tpm_emulator.
> > This is this line:
> >          cd $@/build; cmake .. -DCMAKE_C_COMPILER=${CC} 
> > $(TARGET_CFLAGS) -Wno-declaration-after-statement"
> >
> > I took a look and the affect of doing this is not something we can
> > encode in the tpm_emulator.patch
> Especially considering that the TARGET_CPPFLAGS etc.. change whether or 
> not you're on 32 or 64 and also may change if someone changes the 
> stubdom cross compiler setup.

I half expected that ${CC} and $(TARGET_...) would end up unexpanded in
the output, but no.


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