fvwm timeout when used as window manager under gnome-session

[Takia Incognovsky]

Using the exact same startup process as gnome-flashback, just replacing metacity with fvwm in a renamed copy of /usr/share/gnome-session/sessions/gnome-flashback.session

fvwm loads right away, but the rest of the session (gnome-panel, etc) stalls for a full two and a half minutes until, in .xsession-errors:

gnome-session[2536]: WARNING: Application 'fvwm.desktop' failed to register before timeout
gnome-session[2536]: CRITICAL: We failed, but the fail whale is dead. Sorry....

then everything continues normally, but the delay is intolerable. Rooting about seems to indicate that the fvwm package may simply need a recompile against the latest libraries?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: fvwm 1:2.6.5.ds-3
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Mon Jul 28 01:03:41 2014
InstallationDate: Installed on 2014-07-13 (14 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: fvwm
UpgradeStatus: No upgrade log present (probably fresh install)