Mew hangs when using gpg-agent with non graphical pinentry frontend.

[DanielG]

When mew tries to decrypt .mew-passwd.gpg it hangs forever when no graphical (i.e. gtk/qt) pinentry program is installed and gpg-agent is in use. I use pinentry-curses usually but when I additionally install pinentry-gtk2 I get a graphical prompt instead of it just hanging.

(setenv "GPG_AGENT_INFO" "") before starting mew seems to work around the issue however this is unsatisfactory as then gpg-agent's functionality is broken in any terminal started as a child process of emacs. When using this workaround I get the nice password prompt in emacs' minibuffer as I'd expect (and not the hang or a graphical prompt).

Sorry I can't provide more detailed information but the complete hang of emacs makes this bug very hard to debug, maybe you have at least some idea why this might be happening and what can be done about it.

[DanielG]

Correction: Mew doesn't hang forever. During the Communicating with the IMAP server step and even after the connection times out I am unable to interact with emacs for some time as it accepts no more input, even repeated presses of C-g don't do anything. However eventually (after a few minutes) gpg does seem to time out and I get an IMAP password prompt.

[kazu-yamamoto]

Do you use this?

http://www.mew.org/en/feature/smime.html

[DanielG]

No, I only use gpg.

[kazu-yamamoto]

If you use GnuPG 2, I think the configuration in the page is necessary.

[DanielG]

Oh I see, you meant the installation section. Yeah, seems to work now with mew-pinentry set as the pinentry program :)

Thanks!