swift-corelibs-foundation を wasm32-unknown-wasi 向けにビルドするためのスクリプト

build-corelibs-foundation.sh

#!/bin/bash
set -ex

# 元ファイル: https://github.com/swiftwasm/swiftwasm-build/blob/main/schemes/main/build/build-foundation.sh
# swiftly でツールチェーンをインストール
# swift sdk install で Wasm の Swift SDK をインストール
# swift-collections, swift-foundation, swift-foundation-icu は最新の main ブランチをあらかじめクローンしておく
# libxml2 は https://github.com/swiftwasm/libxml2-wasm/releases/download/2.0.0/libxml2-wasm32-unknown-wasi.tar.gz からダウンロード

DESTINATION_TOOLCHAIN="$HOME/.swiftpm/swift-sdks/swift-wasm-DEVELOPMENT-SNAPSHOT-2025-03-28-a-wasm32-unknown-wasi.artifactbundle/DEVELOPMENT-SNAPSHOT-2025-03-28-a-wasm32-unknown-wasi/wasm32-unknown-wasi/swift.xctoolchain"
LLVM_BIN_DIR="$HOME/.local/share/swiftly/toolchains/main-snapshot-2025-03-28/usr/bin"
CLANG_BIN_DIR="$HOME/.local/share/swiftly/toolchains/main-snapshot-2025-03-28/usr/bin"
SWIFT_BIN_DIR="$HOME/.local/share/swiftly/toolchains/main-snapshot-2025-03-28/usr/bin"
WASI_SYSROOT_PATH="$HOME/.swiftpm/swift-sdks/swift-wasm-DEVELOPMENT-SNAPSHOT-2025-03-28-a-wasm32-unknown-wasi.artifactbundle/DEVELOPMENT-SNAPSHOT-2025-03-28-a-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk"
TRIPLE="wasm32-unknown-wasi"

SOURCE_PATH="$HOME"
LIBXML2_PATH="$HOME/downloads/libxml2-wasm32-unknown-wasi"

FOUNDATION_BUILD="build"

swift_extra_flags=""
c_extra_flags=""

cmake -G Ninja \
    -D CMAKE_SYSROOT="$WASI_SYSROOT_PATH" \
    -D CMAKE_Swift_COMPILER="$SWIFT_BIN_DIR/swiftc" \
    -D CMAKE_STAGING_PREFIX="$DESTINATION_TOOLCHAIN/usr" \
    -D CMAKE_SYSTEM_NAME=WASI \
    -D CMAKE_SYSTEM_PROCESSOR=wasm32 \
    -D CMAKE_C_COMPILER_TARGET="$TRIPLE" \
    -D CMAKE_CXX_COMPILER_TARGET="$TRIPLE" \
    -D CMAKE_Swift_COMPILER_TARGET="$TRIPLE" \
    -D CMAKE_C_COMPILER="$CLANG_BIN_DIR/clang" \
    -D CMAKE_CXX_COMPILER="$CLANG_BIN_DIR/clang++" \
    -D CMAKE_AR="$LLVM_BIN_DIR/llvm-ar" \
    -D CMAKE_RANLIB="$LLVM_BIN_DIR/llvm-ranlib" \
    -D LIBXML2_INCLUDE_DIR="$LIBXML2_PATH/include/libxml2" \
    -D LIBXML2_LIBRARY="$LIBXML2_PATH/lib" \
    -D BUILD_SHARED_LIBS=OFF \
    -D FOUNDATION_BUILD_TOOLS=OFF \
    -D CMAKE_Swift_COMPILER_FORCED=ON \
    -D CMAKE_C_COMPILER_FORCED=ON \
    -D CMAKE_CXX_COMPILER_FORCED=ON \
    -D CMAKE_Swift_FLAGS="-sdk $WASI_SYSROOT_PATH -resource-dir $DESTINATION_TOOLCHAIN/usr/lib/swift_static $swift_extra_flags" \
    -D CMAKE_C_FLAGS="-resource-dir $DESTINATION_TOOLCHAIN/usr/lib/swift_static/clang -B $LLVM_BIN_DIR $c_extra_flags" \
    -D _SwiftCollections_SourceDIR="$SOURCE_PATH/swift-collections" \
    -D _SwiftFoundation_SourceDIR="$SOURCE_PATH/swift-foundation" \
    -D _SwiftFoundationICU_SourceDIR="$SOURCE_PATH/swift-foundation-icu" \
    -D SwiftFoundation_MACRO="$SWIFT_BIN_DIR/../lib/swift/host/plugins" \
    -B "$FOUNDATION_BUILD" \
    "${SOURCE_PATH}/swift-corelibs-foundation"

cmake --build build