[Libguestfs] [PATCH] Change fallback name for external supermin helper

[Olaf Hering]

On Fri, May 31, Richard W.M. Jones wrote:

> On Fri, May 31, 2013 at 10:41:47AM +0200, Olaf Hering wrote:
> > Use basename of external helper instead of 'no' for external supermin
> > helpers. This gives a clear error messages what binary is actually
> > missing, and it is now possible to install the missing package without
> > recompiling libguestfs. In addition its now also possible to use private
> > builds of supermin (if they are in PATH) with a given libguestfs binary
> > package.
> > 
> > Signed-off-by: Olaf Hering <olaf at aepfle.de>
> > ---
> >  configure.ac | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/configure.ac b/configure.ac
> > index 30af871..8f025d0 100644
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -442,9 +442,9 @@ AC_SUBST([ENABLE_APPLIANCE])
> >  
> >  dnl Check for supermin >= 4.1.0 or febootstrap >= 3.20.
> >  AC_CHECK_PROGS([SUPERMIN],
> > -               [supermin febootstrap],[no])
> > +               [supermin febootstrap],[supermin])
> 
> Currently later code in configure.ac checks if "x$SUPERMIN" = "xno"
> and gives an error.  That error would be broken/ineffective after this
> change.  Also it does a version check on $SUPERMIN to make sure it's
> not the ancient febootstrap 2.x which doesn't work.

But this requires that febootstrap or supermin is in BuildRequires:,
while this change removes the hard dependency of BuildRequires:. But I
see, if the appliance is enabled then it would now fail with this
change. In my packaging the appliance is not enabled because zypp
support in supermin is not yet complete, so I did not spot this part. 

So just drop this patch for mow, unless you want to remove the version
check as well.

Olaf