Often I rerun the entire build from scratch when I'm uploading some nontrivial change and I want to really make sure what I'm uploading builds. Clean builds usi

Often I rerun the entire build from scratch when I'm uploading some nontrivial change and I want to really make sure what I'm uploading builds. Clean builds using containers or chroots will often need to rerun a configure step to make sure the build is really clean. You could argue for a "sufficiently smart cache", but if you manage to optimize the configure step to run in a small time without a cache, it's one moving part less to keep in one's mind.