bug#37266: gnupg/pinentry not aware of each other

[jon]

$ gpg --full-generate-key
<snip>
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? o
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
gpg: agent_genkey failed: No pinentry
Key generation failed: No pinentry
$ which pinentry
/run/current-system/profile/bin/pinentry