> > Emerge did this, when confcache was installed and FEATURES=confcache was > set. But I guess this only works well with once cache file per package, > not with a global cache that is being used during all emerges. > The configure script tests for lots of features, each test has a name. But > there is no global naming scheme, so tests for different features can have > the same name in different packages. I think this is why it did not work > so well. >
Yes, that is probably a bad idea to use the same cache file for all packages, if they use different naming schemes. The Autobook suggest that option inside one package with many subpackages. <quote>The presence of a well primed cache file makes a big improvement when configuring a complex tree which has `configure' scripts in each subtree. </quote> I think I will give it a try. Make my an overlay and test it with the gcc, which has such a complex tree. Al