Bug#429617: exim4-config fails to install with postinst trouble

[Mark Crean]

I am finding the same, or very similar. This is the result of "aptitude 
upgrade" or (subsequently) "aptitude install exim4-config":

E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Setting up exim4-config (4.67-3) ...
2007-06-19 11:12:16 Exim configuration error in line 28 
of /var/lib/exim4/config.autogenerated.tmp:
  malformed macro definition
Invalid new configfile /var/lib/exim4/config.autogenerated.tmp
not installing /var/lib/exim4/config.autogenerated.tmp to
/var/lib/exim4/config.autogenerated
dpkg: error processing exim4-config (--configure):
 subprocess post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of exim4-base:
 exim4-base depends on exim4-config (>= 4.30) | exim4-config-2; however:
  Package exim4-config is not configured yet.
  Package exim4-config-2 is not installed.
  Package exim4-config which provides exim4-config-2 is not configured yet.
dpkg: error processing exim4-base (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of exim4-daemon-heavy:
 exim4-daemon-heavy depends on exim4-base (>= 4.67); however:
  Package exim4-base is not configured yet.
dpkg: error processing exim4-daemon-heavy (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of eximon4:
 eximon4 depends on exim4-base (>= 4.10); however:
  Package exim4-base is not configured yet.
dpkg: error processing eximon4 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of exim4:
 exim4 depends on exim4-base (>= 4.67); however:
  Package exim4-base is not configured yet.
 exim4 depends on exim4-daemon-light | exim4-daemon-heavy | 
exim4-daemon-custom; however:
  Package exim4-daemon-light is not installed.
  Package exim4-daemon-heavy is not configured yet.
  Package exim4-daemon-custom is not installed.
dpkg: error processing exim4 (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 exim4-config
 exim4-base
 exim4-daemon-heavy
 eximon4
 exim4