Detecting true64

[Martin Pool]

On 17 Feb 2003, jra at dp.samba.org wrote:
> Does anyone know how to detect a truu64 system in configure.in ?
> I'm going through my patchlist and there is a big optimisation that
> can be done on systems where the getgrnam() call works (True64 is
> listed as the only broken system) and I'd like to add this to
> all branches by adding a BROKEN_GETGRNAM define for True64.

Note that it really is "Tru64".  I guess misspelling makes it more
dynamic.

config.guess should detect a hostname of something like 

  alphaev7-dec-osf4.0f

See e.g.

  http://studio.imagemagick.org/pipermail/magick-bugs/2002-November/000881.html

configure.in should call AC_CANONICAL_HOST, and then examine $host_os,
probably with something like

 case "$host_os" in
 osf*)
    ;;

The config.guess is actually quite old compared to the current GNU
distribution, so I might update that in HEAD and 3_0.  This might
improve correctness or robustness in detecting some platforms.

-- 
Martin 

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	-- Caroline Dahllöf