[CFT] tinderbox/universe building clang once

From: Bryan Drewery <bdrewery_at_FreeBSD.org>
Date: Wed, 20 Jun 2018 14:08:43 -0700

This will build clang once if any of the targets specified (or
defaulted) require bootstrapping clang.

It probably has some issues with LLD_BOOTSTRAP in some cases. It could
be improved more in the future for reusing more of the tools built but I
think this is good enough for now as it saves the majority of the time
in the bootstrap phases on clang.

This won't work for GCC unless it learns convenient -target support.
Its needed --sysroot support was also broken until some recent work from
John Baldwin but I'm not sure if that has been committed yet.

Also FYI WITH_SYSTEM_LINKER support is now in to avoid building libclang
for lld on archs that have LLD_BOOTSTRAP set.

I'm putting this out for testing since tinderbox/universe take so long
and I can't possibly test all workflows with it myself.

Bryan Drewery

Received on Wed Jun 20 2018 - 19:08:47 UTC

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