Re: config.guess and IBM Z

Paul Eggert <[email protected]> Fri, 10 Jan 2025 14:31:03 -0800
Newsgroups gmane.comp.gnu.config.patches,gmane.comp.sysutils.autoconf.general
Organization UCLA Computer Science Department
Message-ID <[email protected]>
Simon: Thanks for your bug report. "./config.guess --help" says to 
report its bugs to [email protected], so I'm forwarding your bug 
report there, and please followup there. (Autoconf merely copies 
config.guess from upstream.) Thanks.

On 2025-01-10 14:22, Simon Sobisch wrote:
> The script queries the output of uname, which is on the machine I test 
> on (IBM Z with Unix System Services USS):
> 
> OS/390 S0W1 29.00 05 3931
> 
> because of OS/390 the script sets
> 
>      *:OS/390:*:*)
>      GUESS=i370-ibm-openedition
> 
> The vendor ibm is correct, the os "openedition" _may_ be fine, but the 
> cpu type is definitely not correct, standing for the 32bit mainframe 
> architecture System/370 from 1970.
> 
> 
> Instead, the cpu 3931 is part of the IBM Z architecture (z16, "Telum" 
> from 2022).
> 
> Maybe _if_ there is any cpu part just place it in there (or do a mapping 
> to zNN) or use a place holder like ibmZ?
> 
> 
> See https://en.wikipedia.org/wiki/IBM_Z
> https://www.redbooks.ibm.com/redbooks/pdfs/sg248951.pdf
> https://www.nextplatform.com/2024/08/27/ibm-shows-off-next-gen-ai- 
> acceleration-on-chip-dpu-for-big-iron/
> 
>