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

[Jerry Needell]

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.

-- 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



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Jerry Needell                     | Internet: jerry.needell at unh.edu
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