Any process that I start through gnome-shell seems to have a SSH_AUTH_SOCK
matching a ssh-agent process (probably started through the X11 session
scripts). However, if I start a process through gnome-settings-daemon (like a
terminal, through the shortcurt for that), it has SSH_AUTH_SOCK set to the path
for gnome-keyring.

The result is that any app I start through gnome-shell actually has, by
default, not access to my ssh keys :/

(also, I thought I had fixed a long time ago the bit starting ssh-agent on
gnome sessions -- this shouldn't happen because of the keyring)