Re: make buildworld: "[...] fatal error: 'llvm/Demangle/Demangle.h' file not found", among other errors

From: David Wolfskill <david_at_catwhisker.org>
Date: Wed, 05 Nov 2025 18:00:34 UTC
On Wed, Nov 05, 2025 at 05:50:43PM +0000, ruby R53 wrote:
> I've tried re-cloning my source tree and am still getting this error when trying to build the world, among others.
> The full error message is
> --- Demangle/ItaniumDemangle.o ---
> /usr/src/contrib/llvm-project/llvm/lib/Demangle/ItaniumDemangle.cpp:13:10: fatal error: 'llvm/Demangle/Demangle.h' file not found
> 
> ...
> Is my copy broken, or is there something actually missing on the original repository?
> ....

I don't know the latest commit in your copy of the tree, but I updated
from main-n281683-3ccb2d9513e6 to main-n281708-b8697ac70ebf via an
in-place source-based update on 4 machines earlier today.

One of those machines used -j112; the others used -j14.

Peace,
david
-- 
David H. Wolfskill                              david@catwhisker.org

See https://www.catwhisker.org/~david/publickey.gpg for my public key.