bug#24076: gnupg [-agent]: when signing [commits], it claims that there is no pinentry - but there is

[Danny Milosavljevic]

> Another option would be to change ‘gnupg_module_name’, in homedir.c, from:
> 
> --8<---------------cut here---------------start------------->8---
>     case GNUPG_MODULE_NAME_PINENTRY:
> #ifdef GNUPG_DEFAULT_PINENTRY
>       return GNUPG_DEFAULT_PINENTRY;
> #else
>       X(bindir, "pinentry");
> #endif
> --8<---------------cut here---------------end--------------->8---
> 
> to something like:
> 
> --8<---------------cut here---------------start------------->8---
>     case GNUPG_MODULE_NAME_PINENTRY:
>       X(homedir, ".guix-profile/bin/pinentry);
> --8<---------------cut here---------------end--------------->8---
> 
> … in which case GnuPG would default to the user-installed pinentry, if
> available.  Not perfect either, but closer to what other distros do.

I would like that, yes. It's not like the X(bindir, "pinentry") would ever work 
in GuixSD anyway - so no loss.