On 13 Jan 2006, Ben Elliston uttered the following: >> I apologize if this question has already been answered but I would >> like to know if there is a way to reuse the same config.cache file >> for all the builds of all the subdirectories of a bootstrap ? > > It should be possible, but the configure scripts do not update the > config.cache file in a concurrency-safe fashion, so this would make > parallel building impossible--something which is no doubt a bigger > win.
Also, configure may give different answers when rerun on some subdirectories with different compilers (particularly when multilibbing, or for directories like libiberty which are configured both with the bootstrap compiler and with others). configure runs never take long compared to everything else building GCC involves, anyway (well, except on Solaris boxes when you forget to set SHELL appropriately!) -- `I must caution that dipping fingers into molten lead presents several serious dangers.' --- Jearl Walker
