My periodic bark at auto "tools" 2003/1 edition (was Re:rtems-ss-20030128)

[Joel Sherrill]

Jerry Needell wrote:
> 
> Thomas Doerfler wrote:
> > Hello Ralf,
> >
> >
> >>Am Mon, 2003-02-03 um 16.15 schrieb Thomas Doerfler:
> >>
> >>>Hello,
> >>>
> >>>... many lines snipped...
> >>>
> ... many more lines snipped
> 
> > Another point: whenever somebody mentions the need to install
> > multiple toolset versions on the same machine, he/she gets the
> > answer "rebuild the toolset with different prefixes", well
> > this once again leads to having toolset-dependent installation
> > directories, and that's exactly what I would like to have.
> >
> > Maybe the naming scheme mentioned above is not the best one,
> > maybe it would be better to couple the toolset install
> > directory name to the RTMES snapshot version or something like
> > that, but I think ANY version-dependent installation dirctory
> > in the standard RPMs would be better than the current choices,
> > that are:
> >
> > A:) Install only ONE toolset on a certain machine (and
> > deinstall/install another toolset when you switch to a
> > different RTEMS snapshot)
> >
> > or
> >
> > B:) Rebuild the RPMs (which is really easy, I like it now) and
> > apply your own home-brewn naming scheme to the installation
> > prefix.
> >
> > Any other opinions on this discussion?
> >
> 
> I have had to deal with several different pre-compilled installations at
> various times and found that the following worked well for me:
> 
> -install version A in /opt/rtems
> -rename /opt/rtems to /opt/rtems-A
> 
> - install verion B in /opt/rtems
> - rename /opt/rtems to /opt/rtems-B
> 
> -make a symbolic link from rtems-A or rtems-B to /opt/rtems depending on
> which  installation I want to use at the time.

Be warned that RPM keeps a database of packages installed and this
might confuse it.

> -- Jerry
> 
> > wkr,
> >       Thomas.
> >
> > P.S.: Ralf, I really want to thank you for the work you do for
> > RTEMS, I don't understand all the ideas behind
> > autoconf/automake, but I am sure it keeps the RTEMS source
> > tree manageable.
> >
> >
> > --------------------------------------------
> > IMD Ingenieurbuero fuer Microcomputertechnik
> > Thomas Doerfler           Herbststrasse 8
> > D-82178 Puchheim          Germany
> > email:    Thomas.Doerfler at imd-systems.de
> > PGP public key available at: http://www.imd-
> > systems.de/pgp_keys.htm
> 
> --
> _______________________________________________________________________
> Jerry Needell                     | Internet: jerry.needell at unh.edu
> Space Science Center/Morse Hall   | Voice: (603) 862 2732
> University Of New Hampshire       | FAX:   (603) 862 0311
> Durham, NH 03824                  |

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
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