On 29 Jul 2019, at 03:07, Ed Maste <ema...@freebsd.org> wrote: > > On Fri, 26 Jul 2019 at 22:44, Jeremy Chadwick via freebsd-stable > <freebsd-stable@freebsd.org> wrote: >> >> TL;DR for lazy folks: >> >> stable/11 r350330 world + minimal clang = 1:29:34 >> stable/11 r350330 world + full clang = 1:46:31 >> stable/11 r350252 world + minimal clang = 56:52 >> stable/11 r350252 world + full clang = 1:14:30 > > Yes, because you're currently running r349226, and the world build > thus first builds its own toolchain. Try the same experiment running > on a r349226 or later installed world.
Indeed, that is the most likely explanation. Unfortunately stable/11's Makefile.inc1 does not explicitly show that it is going to bootstrap the toolchain, like in head and stable/12, which show this right at the start of buildworld: --- buildworld --- make[1]: "/usr/src/Makefile.inc1" line 349: SYSTEM_COMPILER: libclang will be built for bootstrapping a cross-compiler. make[1]: "/usr/src/Makefile.inc1" line 354: SYSTEM_LINKER: libclang will be built for bootstrapping a cross-linker. --- buildworld_prologue --- Instead, you can only check for the *absence* of the following message: "Determined that CC=xxx matches the source tree. Not bootstrapping a cross-compiler." -Dimitry
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