Re: Question on updating to 29.1

[Basile Starynkevitch]

On 8/11/23 10:45, PierGianLuca wrote:
> Thank you Philip and Basile (who gave me advice off-list).
>
> Sorry for not being clear:
>
> > Did you install version 28.1 from a Git checkout or from a tarball?
>
> Tarball. I first *un*installed the Ubuntu pre-packaged Emacs.
>
> I considered fetching from git, but it would add a layer of things 
> that I don't fully understand.
>
> So I can simply re-do what I with 28.1 (with minor changes as Philip 
> warned about), and the new Emacs version will simply replace the old.


Don't replace but do have both.

Keep Ubuntu emacs on /usr/bin/emacs. Perhaps reinstall that package.

Kepp your compiled emacs on /usr/local/bin/emacs or 
/usr/local/bin/my-emacs or $HOME/bin/emacs


You need to run the configure script appropriately.

I did configure my emacs-30 from source code using:

'./configure'  'CFLAGS=-O2 -g' 'CC=/usr/bin/gcc-13' 
'--with-native-compilation' '--with-json' 
'--enable-link-time-optimization' '--with-x-toolkit=gtk3' 
'--program-suffix=-trunk'

adapt that command to your tastes and settings.

On Linux, choosing between old emacs and youre new one is mostly a 
matter of

configuring your window manager

defining appropriate GNU bash (or Unix shell) functions or aliases to 
run your emacs or Ubuntu emacs

setting a correct $PATH ; mine (set in  ~/.zshrc since my shell is 
zsh.org) 
$HOME/.opam/default/bin:$HOME/bin:$HOME/scripts:/usr/local/bin:$HOME/.opam/default/bin:/usr/bin:/bin:/sbin:/usr/sbin

NB. My pet free software project is the RefPerSys inference engine on 
https://github.com/RefPerSys/RefPerSys/ - contributors are welcome.

--
Basile Starynkevitch                  <basile@starynkevitch.net>
(only mine opinions / les opinions sont miennes uniquement)
92340 Bourg-la-Reine, France
web page: starynkevitch.net/Basile/