Dear all,
Thank you for your feedbacks.
After several attempts, I was finally successful with the installation of Demeter. I attach a log file summarizing the different steps I experienced (and a screenshot of the main window). I guess step 2 and 5 would have been enough:
sudo port install demeter
Indeed, several hours were required for the whole installation procedure (more than 9 hours, but my internet connection is quite slow at home...).
I can now execute athena from the terminal, and apparently it works fine. However, I observe a strange behavior : After athena is running, I must click once on the terminal window before the main menus are active in Demeter (File, Group, Energy, etc.). But when we know that, it’s ok.
And the most important, I don’t have any graphical window to display the spectra. Would you have any suggestion? (Xquartz and Aquaterm are already installed on my computer).
Thank you again for your help!
Manuel