>>>>> "Joern" == Joern Rennecke <joern.renne...@embecosm.com> writes:
Joern> The likelyhood that a test depends on the outcome of the last few Joern> n tests is rather low. So you could tests speculatively with an Joern> incomplete set of defines, and then re-run them when you have Joern> gathered all the results from the preceding tests to verify that Joern> you have computed the right result. I think there are things that can be parallelized without needing to do any speculation. For example, AC_CHECK_HEADERS is often invoked with many header files. These could in most cases be checked for in parallel. Similarly for AC_CHECK_FUNCS. Beyond that you could define a general way to run checks in parallel and then just change the gcc configure script to use it, using knowledge of the code to decide what dependencies there are. Whether or not this would yield a big enough benefit, though ... I had the vague impression that this was being looked at in upstream autoconf, but I don't actually follow it any more. Tom
