Il 22/05/2013 11:42, Michael S. Tsirkin ha scritto: > 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.
Yes, I use a clean clone (and a clean build directory for each patch), _hence_ ccache helps reducing test times. Paolo
