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Bug#295428: FTBFS: autoconf bug?

On Wed, Feb 23, 2005 at 10:58:27AM +0100, Jeroen van Wolffelaar wrote:
> On Wed, Feb 16, 2005 at 03:53:49PM +1000, Adam Conrad wrote:
> > Martin Orr said:
> > >
> > > Could you change configure.in to have AC_PREREQ(2.50) at the top?
> > 
> > That's my planned fix, yes. :)
> That doesn't sound to me like the correct solution to this bug, though.
> The problem is that autoconf gets invoked without making sure the right
> autoconf is invoked.
> Either running autoconf is needed, then somehow autconf2.5 needs to be
> invoked,

That is exactly what AC_PREREQ(2.50) does.  apache2 already Build-Depends on
autoconf which in sid and sarge means 2.50 (actually 2.59) - although
perhaps there should be a versioned Build-Depends.

The problem occurs if you install autoconf2.13 at the same time (which was
what I had but didn't realise).  It diverts /usr/bin/autoconf to
autoconf2.50 and replaces it with a script which does some heuristics to try
to guess which version is required - and most often selects 2.13 (as in the
case of apache2).  One of the checks is to look for an AC_PREREQ line so by
adding that, the wrapper will indeed run autoconf2.50.

Martin Orr
Linux Administrator,
Methodist College Belfast

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