Re: [Xen-devel] [PATCH v6 10/13] autoconf: xen: move standard path variables to config/Paths.mk.in

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2014-07-03 at 20:53 +0200, Luis R. Rodriguez wrote:
> On Wed, Jul 02, 2014 at 02:34:14PM +0100, Ian Campbell wrote:
> > On Thu, 2014-06-12 at 18:18 -0700, Luis R. Rodriguez wrote:
> > > From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx>
> > > +LIBDIR=`eval echo $libdir`
> > 
> > Why is this one an eval?
> 
> BTW I now see why I had used the eval on LIBDIR, its because otherwise 
> Paths.mk
> ends up with:
> 
> LIBDIR                   := ${exec_prefix}/lib64
> ...
> PRIVATE_PREFIX           := ${exec_prefix}/lib64/xen
> PRIVATE_PREFIX           := ${exec_prefix}/lib64/xen
> PRIVATE_BINDIR           := ${exec_prefix}/lib64/xen/bin
> ...
> 
> Can I upkeep the eval?

Seems a bit odd that this would only affect LIBDIR and not PREFIX.

I'd like to understand why this happens before reaching for the eval (or
to see some autoconf documentation that claims this is the right thing
to do).

Ian.


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