Unable to build on Ubuntu 24.04

[CaelJacobsEngineer]

I'm attempting to build Meetily on Ubuntu 24.04:

Distributor ID:	Ubuntu
Description:	Ubuntu 24.04.4 LTS
Release:	24.04
Codename:	noble

...and I'm having trouble with it. The process I have followed is as listed in the docs here (this bare machine didn't have npm or rust installed on it, so I added those):

git clone https://github.com/Zackriya-Solutions/meeting-minutes
sudo apt update
sudo apt install build-essential cmake git npm rustup -y
rustup default stable

cd meeting-minutes/frontend/
./build-gpu.sh

It builds a bunch of stuff successfully, and then fails with:

error: failed to run custom build command for `llama-cpp-sys-2 v0.1.146`

[a whole bunch of output that doesn't seem specifically relevant]

/home/ubuntu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/llama-cpp-sys-2-0.1.146/llama.cpp/ggml/include/ggml.h:211:10: fatal error: 'stdbool.h' file not found

  thread 'main' (52913) panicked at /home/ubuntu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/llama-cpp-sys-2-0.1.146/build.rs:481:10:
  Failed to generate bindings: ClangDiagnostic("/home/ubuntu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/llama-cpp-sys-2-0.1.146/llama.cpp/ggml/include/ggml.h:211:10: fatal error: 'stdbool.h' file not found\n")
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

It looks like it isn't finding the system's default header files under /usr/include/...

I did some monkeying around with copying the relevant header files into places that the build would find them, and I finally ran aground on this error:

/home/ubuntu/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/llama-cpp-sys-2-0.1.146/llama.cpp/ggml/include/tr1/cstdint:61:1: error: unknown type name 'namespace'

...and a bunch of subsequent errors that appear to be a result of the first one.

Online research suggests that the error: unknown type name 'namespace' is the result of a file being compiled as C, rather than as C++, but at this point I'm just guessing.

Can anyone tell me what stupid mistake I'm making that's perfectly obvious to everyone else?

[gistrec]

The first error is the real one. The second — unknown type name 'namespace' from tr1/cstdint — is just your hand-copied headers being parsed as C, not a separate problem; you'll want to revert those (see step 2 below).

Why it happens

llama-cpp-sys-2 generates its bindings with bindgen, which parses headers through libclang, not your $CC. libclang needs Clang's own resource headers (stdbool.h, stddef.h, …), and build-essential only installs GCC's — so libclang never finds them.

1. Install Clang

This brings the resource headers along with it. Note that libclang-dev on its own is often not enough — those headers come with the clang package:

sudo apt install clang libclang-dev

2. Undo your manual copies properly

They live inside the unpacked crate under ~/.cargo/registry/src/…, and a normal rebuild won't remove them (cargo clean only touches target/). Delete the crate's source directory so Cargo re-extracts a clean copy, then build again:

rm -rf ~/.cargo/registry/src/*/llama-cpp-sys-2-0.1.146
./build-gpu.sh

If stdbool.h is still not found

Point bindgen straight at Clang's resource directory:

export BINDGEN_EXTRA_CLANG_ARGS="-I$(clang -print-resource-dir)/include"

Btw, this is bindgen's requirements: https://rust-lang.github.io/rust-bindgen/requirements.html

[CaelJacobsEngineer]

I knew the copying of the includes wasn't the right thing to do, but I am unfamiliar with clang and bindgen, so I figured I'd give it a shot to see.

I started over this morning with a clean VM, so I didn't have to undo the mess I'd made. It turns out that your
sudo apt install clang libclang-dev was all I needed; I didn't even have to do the addition of include directories in the environment.

Thank you for the help!