Re: [Xen-devel] [PATCH 1 of 2 v3] tools: check for documentation generation tools at configure time

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Mon, 2012-09-17 at 18:08 +0100, Matt Wilson wrote:
> On Mon, Sep 17, 2012 at 10:42:44AM +0100, Ian Campbell wrote:
> >         configure: error: in 
> > `/home/xendocs/cronjobs/working/docs/unstable/tree/tools':
> >         configure: error: no acceptable C compiler found in $PATH
> >         See `config.log' for more details
> > 
> > Which is a bit annoying if all you wanted was to build docs. I'm not
> > sure I really want to advocate putting gcc on xenbits. I suppose I could
> > put a dummy shell script in $PATH.
> 
> ./configure is probably going to need a compiler that produces
> executables.

True.

> 
> > AIUI autoconf allows you to define that a configure script calls a
> > sub-configure script. Could we use this at the toplevel to call both
> > tools/configure and a new docs/configure? Then my docs scripts could
> > just call docs/configure?
> 
> This sounds like a better idea.
> 
> > FWIW the unrelated issue was:
> >         $ make -C docs/ clean
> >         /bin/sh: gcc: not found
> >         /bin/sh: arithmetic expression: expecting primary: ""
> > which I think is down to the gcc version check in Config.mk.
> 
> While we're discussing expanding the coverage of ./configure, I
> wonder: what (if any) is the resistance to requiring ./configure to
> build the xen/ tree?

The hypervisor maintainers were pretty much unanimously against it.

There's some discussion in the archives around the time autoconf was
added and even a patch (applied and now reverted IIRC) to do as you
suggest.

Ian.


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