On Wed, May 22, 2013 at 11:22:52AM +0200, Paolo Bonzini wrote: > Il 22/05/2013 10:52, Michael S. Tsirkin ha scritto: > > The fix is simple here: don't use ccache. I don't. > > > > In fact, from what I saw people use ccache to work around makefile bugs, > > so they can do make clean; make and have it finish quickly. > > > > Any other examples? > > Testing configure patches should be done (also) from a clean build > directory, for example. > > Paolo
In fact, relying on make clean for testing the build system is a mistake. It's easy for it to forget to remove some temporary file. You really should do a clean clone. But testing is a completely separate issue IMO, I'm not trying to fix that, just reduce the chance of a failed or corrupted build. -- MST