On Wed, Nov 17, 2010 at 8:00 PM, Paolo Bonzini <pbonz...@redhat.com> wrote: > On 11/17/2010 08:15 PM, Blue Swirl wrote: >> >> If the user attempts to run 'configure' in the source tree, >> create an object directory and configure that instead. >> >> Rename topmost Makefile to Makefile.top. Add a new Makefile, which >> is only used when user attempts to run 'make' in the source tree. > > Interesting, but what's the point? It hardly simplifies code, since > $source_path_used can be eliminated anyway...
It's not simplification but to unify the build system. Some people make changes to Makefiles and then test their changes without an object directory, these may then break the build for those who use it. This has happened several times already. Hopefully we can avoid those breakages with this change.
