Please consider merging branch `sbuild-fixes` of repo `https://git.spwhitton.name/propellor`. User-visible changes, excerpted from changelog: * Using ccache with Sbuild.built & Sbuild.builtFor is now toggleable: these properties now take a parameter of type Sbuild.UseCcache. (API Change) * Sbuild.piupartsConf: no longer takes an Apt.Url. (API Change) * Sbuild.piupartsConf & Sbuild.piupartsConfFor: does nothing if corresponding schroot not built. Previously, these properties built the schroot if it was missing. * Sbuild.built & Sbuild.piupartsConf: add an additional alias to sid chroots. This is for compatibility with `dgit sbuild`. * Further improvements to Sbuild.hs haddock. > [[done]] --[[Joey]]