Hi Thomas. Modular solver support for optional stanzas is done. Regarding your patches, there's one aspect I don't understand: In Distribution/Client/Install.hs: configBenchmarks = toFlag False, configTests = toFlag (TestStanzas `elem` stanzas) You first had configBenchmarks analogous to configTests, then changed it back. I don't fully understand why the two should be handled differently. Could you please explain? Do you happen to know existing packages that make use of benchmark stanzas that I could use as test cases? The current diff to the trunk (all I intend to push) is here: http://www.andres-loeh.de/cabal-install-enable-tests-3.dpatch Thanks. Andres -- Andres Löh, Haskell Consultant Well-Typed LLP, http://www.well-typed.com