Try sorting out emacsen mess once again (Closes: #481391).

Depend on emacsen-common.
old-prerm will most likely fail spewing emacsen-common error message
when upgrading from previous version but this is OK. Add a custom
prerm script which recovers from the problem and notifies the user to
ignore the error message.

Signed-off-by: Modestas Vainius <modestas@vainius.eu>

debian/changelog

@@ -7,8 +7,14 @@ cmake (2.6.2-2~pre1) UNRELEASED; urgency=low
       Thanks to Ludovico Cavedon (Closes: #487528).
     - FindMPEG2_include_FindSDL_fix.diff - fix FindSQL include in the
       MPEG2 module. Thanks to Leopold Palomo Avellaneda (Closes: #500770).
-
- -- Modestas Vainius <modestas@vainius.eu>  Thu, 16 Oct 2008 11:03:18 +0300
+  * Try sorting out emacsen mess once again (Closes: #481391):
+    - depend on emacsen-common;
+    - old-prerm will most likely fail spewing emacsen-common error message
+      when upgrading from previous version but this is OK. Add a custom
+      prerm script which recovers from the problem and notifies the user to
+      ignore the error message.
+
+ -- Modestas Vainius <modestas@vainius.eu>  Thu, 16 Oct 2008 11:17:00 +0300
 
 cmake (2.6.2-1) experimental; urgency=low
 

debian/cmake.prerm

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+set -e
+
+if [ "$1" = "failed-upgrade" ] && dpkg --compare-versions "$2" le 2.6.2-1; then
+    # It is very likely that old-prerm failed due to emacsen-common being
+    # unconfigured at this stage. The error is harmless and cannot be avoided
+    # in a sane way.
+    #   ERROR: emacsen-common being used before being configured.
+    #   ERROR: This is likely a bug in the cmake package, which needs to
+    #   ERROR: add one of the appropriate dependencies.
+    #   ERROR: See /usr/share/doc/emacsen-common/debian-emacs-policy.gz
+    #   ERROR: for details
+    #
+    # Therefore tell the user to ignore the error and exit gracefully.
+    echo <<END
+NOTE: The emacsen-common error above is harmless and can be safely ignored.
+NOTE: Upgrade will continue as usual.
+END
+    exit 0
+fi
+
+#DEBHELPER#

debian/control

@@ -11,7 +11,7 @@ Vcs-Browser: http://git.debian.org/?p=collab-maint/cmake.git;a=summary
 
 Package: cmake
 Architecture: any
-Depends: ${shlibs:Depends}
+Depends: ${shlibs:Depends}, emacsen-common
 Description: A cross-platform, open-source make system
  CMake is used to control the software compilation process using
  simple platform and compiler independent configuration files. CMake