build-lib.sh

#!/usr/bin/env bash
# build-lib.sh — Build libqwen_asr.a static library for macOS (Universal Binary)
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VENDOR_DIR="$SCRIPT_DIR/vendor/qwen-asr"
OUTPUT_DIR="$VENDOR_DIR/lib"

CC=clang
CFLAGS_BASE="-Wall -Wextra -O3 -ffast-math -DUSE_BLAS -DACCELERATE_NEW_LAPACK"

SRCS=(
    qwen_asr.c
    qwen_asr_kernels.c
    qwen_asr_kernels_generic.c
    qwen_asr_kernels_neon.c
    qwen_asr_kernels_avx.c
    qwen_asr_audio.c
    qwen_asr_encoder.c
    qwen_asr_decoder.c
    qwen_asr_tokenizer.c
    qwen_asr_safetensors.c
)

build_arch() {
    local ARCH=$1
    local BUILD_DIR="$VENDOR_DIR/build-$ARCH"
    mkdir -p "$BUILD_DIR"

    echo "  Compiling for $ARCH..."
    for src in "${SRCS[@]}"; do
        $CC $CFLAGS_BASE -target "${ARCH}-apple-macos14" -c "$VENDOR_DIR/$src" -o "$BUILD_DIR/${src%.c}.o"
    done

    echo "  Archiving libqwen_asr-$ARCH.a..."
    ar rcs "$BUILD_DIR/libqwen_asr.a" "$BUILD_DIR"/*.o
}

echo "=== Building libqwen_asr.a (Universal Binary) ==="

build_arch "arm64"
build_arch "x86_64"

mkdir -p "$OUTPUT_DIR"

echo "  Creating universal binary..."
lipo -create \
    "$VENDOR_DIR/build-arm64/libqwen_asr.a" \
    "$VENDOR_DIR/build-x86_64/libqwen_asr.a" \
    -output "$OUTPUT_DIR/libqwen_asr.a"

# Copy headers
mkdir -p "$OUTPUT_DIR/../include"
cp "$VENDOR_DIR/qwen_asr.h" "$OUTPUT_DIR/../include/"
cp "$VENDOR_DIR/qwen_asr_audio.h" "$OUTPUT_DIR/../include/"
cp "$VENDOR_DIR/qwen_asr_tokenizer.h" "$OUTPUT_DIR/../include/"
cp "$VENDOR_DIR/qwen_asr_safetensors.h" "$OUTPUT_DIR/../include/"
cp "$VENDOR_DIR/qwen_asr_kernels.h" "$OUTPUT_DIR/../include/"
cp "$VENDOR_DIR/qwen_asr_kernels_impl.h" "$OUTPUT_DIR/../include/"

# Cleanup
rm -rf "$VENDOR_DIR/build-arm64" "$VENDOR_DIR/build-x86_64"

echo ""
echo "Done: $OUTPUT_DIR/libqwen_asr.a"
lipo -info "$OUTPUT_DIR/libqwen_asr.a"
echo "Headers: $OUTPUT_DIR/../include/"