[Libvir] PATCH: Remove use of PKG_CHECK_EXISTS

[Daniel P. Berrange]

On Tue, Jan 22, 2008 at 04:28:12PM -0500, Daniel Veillard wrote:
> On Tue, Jan 22, 2008 at 07:21:41PM +0100, Jim Meyering wrote:
> > "Daniel P. Berrange" <berrange at redhat.com> wrote:
> > ...
> > > Index: configure.in
> > > ===================================================================
> > > RCS file: /data/cvs/libvirt/configure.in,v
> > > retrieving revision 1.121
> > > diff -u -p -r1.121 configure.in
> > > --- configure.in	19 Jan 2008 18:36:01 -0000	1.121
> > > +++ configure.in	22 Jan 2008 17:21:27 -0000
> > ...
> > > -if test "z$with_libxml" = "zno" ; then
> > > +if test "$with_libxml" = "no" ; then
> > 
> > It's good to leave some kind of prefix on tested values like that,
> > since the $with_libxml value is user-settable.
> > I.e., with your change, --with-libxml=-lt causes
> > a syntax error in the configure script:
> > 
> >     ./configure: line 27674: test: -z: integer expression expected
> 
>   Oh, that's why, I always wondered why people had that strange
> habit of adding a prefix, good to know !
> 
>   +1 for the patch too,

I put those extra 'x' back into the tests - and added some more which
were already msssing. I broke some of the lines to be under 80, but
it wasn't pratical to fix all of them.

Dan.
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