@jonas thank you SO much ! it works, I can access the iPod (an old ipod mini). However I cannot copy from the iPod to the computer. Do you know how I can do this?

Hi, I just installed Strawberry on my iMac Catalina in an attempt to get my music files stored on my ipod back to my computer, and then if I can keep Strawberry as an alternative to Apple Music I would be very pleased too ! However when I try to open my ipod from Strawberry, I've got a message saying Strawberry was not compiled with Libgpod and so reading might be very slow and writing could not work. (in French, the exact message is "Ceci est un iPod, mais vous avez compilé Strawberry sans le support libgpod. Si vous continuez, ce périphérique fonctionnera lentement et les morceaux que vous y copiez pourraient ne pas fonctionner."). How can I get the proper compilation of Strawberry ?
Thank you for your answers!