Compiled package and dependency management

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http://askubuntu.com – I have a package that depends on squid 3.2. I want to replace squid 3.2 with source compiled version of squid 3.3 beta (which is not available in repository). When I remove squid 3.2, the depending package is also getting removed. How can I mark the squid 3.2 dependency as manually resolved? Is that the purpose of the command aptitude umarkauto? (HowTos)