I don't have an Arch machine, so I tried this in a docker container:
```
docker run -it archlinux:latest /bin/bash
pacman -S boost cmake clang git libevent ninja python
git clone https://github.com/Bitcoin-ABC/bitcoin-abc.git
cd bitcoin-abc
cmake -GNinja . -DBUILD_BITCOIN_WALLET=OFF -DBUILD_BITCOIN_QT=OFF -DENABLE_UPNP=OFF -DBUILD_BITCOIN_ZMQ=OFF -DUSE_JEMALLOC=OFF
```