Technically, "make regen-all" doesn't use the freshly built Python. It uses PYTHON_FOR_REGEN which is usually "python3".
Victor 2017-07-24 15:48 GMT+02:00 Nick Coghlan <ncogh...@gmail.com>: > On 24 July 2017 at 18:55, Victor Stinner <victor.stin...@gmail.com> wrote: >> 2017-07-24 9:37 GMT+02:00 Serhiy Storchaka <storch...@gmail.com>: >>> `make regen-all` touches header files which are dependencies for all >>> binaries. I suggest to run `make regen-all` before `make`. >> >> Zachary Ware explained me once that "make regen-all" should be run >> after "make", but I don't recall why :-) > > Some of the generators (including Argument Clinic) are themselves > written in Python, so building the checked in version first is the > only way to be 100% sure you have a compatible version available. > > As Serhiy notes, the robust fix is to make sure the generators leave > the file modification times unchanged if they don't actually change > anything, either by working entirely in memory and only writing the > result back out if it changed, or by generating out-of-place and then > doing either a rename (if the result changed), or deleting the new one > (if it is the same as the original). > > Cheers, > Nick. > > -- > Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia _______________________________________________ python-committers mailing list python-committers@python.org https://mail.python.org/mailman/listinfo/python-committers Code of Conduct: https://www.python.org/psf/codeofconduct/
