#!/bin/sh
# Build the checked-out llama.cpp fork with the Apple Metal backend used by gem.
set -eu

root=$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd)
llama_dir=${GEM_LLAMA_CPP_DIR:-"$root/../qwen38-llama-bench/llama.cpp"}
build_dir=${GEM_LLAMA_BUILD_DIR:-"$llama_dir/build-gem-metal"}

if [ ! -f "$llama_dir/CMakeLists.txt" ]; then
    echo "gem: llama.cpp source not found at $llama_dir" >&2
    echo "set GEM_LLAMA_CPP_DIR to the DeepSeek-V4-enabled llama.cpp checkout" >&2
    exit 1
fi

cmake -S "$llama_dir" -B "$build_dir" -DGGML_METAL=ON -DLLAMA_BUILD_SERVER=ON \
    -DLLAMA_BUILD_TOOLS=ON -DLLAMA_BUILD_TESTS=OFF -DLLAMA_BUILD_EXAMPLES=OFF
cmake --build "$build_dir" --config Release