[gentoo-user] gio/pcmanfm sftp:// "operation not supported"

[Grant Edwards]

Does anybody have any idea how to get pcmanfm to work with sftp?

I've found plenty of sources claiming it should work but all I ever
get when I try to open "sftp://<host>/" is "operation not supported"
[same result for both pcmanfm and pcmanfm-qt].

Google led me to several pages where the problem was not having gvfs
installed. I do have gvfs installed, but I suspect it's broken. I get
the impression that

    $ gio list sftp://<host>/<path>

is supposed to work, but that too says "Operation not supported".

I've run strace -f on the above command, and none of the traced system
calls return ENOTSUP or EOPNOTSUPP

The same sftp:// URL works fine in filezilla, so I know the remote
server is OK.

The loan of a clue would be appreciated.

--
Grant