diff -r b36670d730b2 -r 7c47bc8550d4 debian/control
--- a/debian/control	Tue Dec 23 14:38:59 2008 +0100
+++ b/debian/control	Tue Dec 23 14:42:41 2008 +0100
@@ -10,7 +10,8 @@
 Package: cubicweb
 Architecture: all
 XB-Python-Version: ${python:Versions}
-Depends: ${python:Depends}, cubicweb-server (= ${source:Version}), cubicweb-twisted (= ${source:Version}), cubicweb-client (= ${source:Version}), postgresql-8.3, postgresql-plpython-8.3, postgresql-contrib-8.3
+Depends: ${python:Depends}, cubicweb-server (= ${source:Version}), cubicweb-twisted (= ${source:Version}), cubicweb-client (= ${source:Version})
+Recommends: (postgresql, postgresql-plpython, postgresql-contrib) | mysql | sqlite3
 Description: the complete CubicWeb framework
  CubicWeb is a semantic web application framework.
  .
@@ -23,7 +24,10 @@
 Package: cubicweb-server
 Architecture: all
 XB-Python-Version: ${python:Versions}
-Depends: ${python:Depends}, cubicweb-common (= ${source:Version}), cubicweb-ctl (= ${source:Version}), python-indexer (>= 0.6.1), python-psycopg2
+Conflicts: cubicweb-multisources
+Replaces: cubicweb-multisources
+Provides: cubicweb-multisources
+Depends: ${python:Depends}, cubicweb-common (= ${source:Version}), cubicweb-ctl (= ${source:Version}), python-indexer (>= 0.6.1), (python-psycopg2 | python-mysqldb | python-pysqlite2)
 Recommends: pyro, postgresql-8.3, postgresql-plpython-8.3, postgresql-contrib-8.3, cubicweb-documentation (= ${source:Version})
 Description: server part of the CubicWeb framework
  CubicWeb is a semantic web application framework.