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set -x -e -v
artifact=$(basename $TOOLCHAIN_ARTIFACT)
cd $MOZ_FETCHES_DIR/wasi-sdk
mkdir -p build/install/wasi
# The wasi-sdk build system wants to build clang itself. We trick it into
# thinking it did, and put our own clang where it would have built its own.
ln -s $MOZ_FETCHES_DIR/clang build/llvm
touch build/llvm.BUILT
# The wasi-sdk build system has a dependency on compiler-rt for libcxxabi,
# but that's not actually necessary. Pretend it's already built
touch build/compiler-rt.BUILT
# The wasi-sdk build system wants a clang and an ar binary in
# build/install/$PREFIX/bin
ln -s $MOZ_FETCHES_DIR/clang/bin build/install/wasi/bin
ln -s llvm-ar build/install/wasi/bin/ar
# Build wasi-libc, libc++ and libc++abi.
# `BULK_MEMORY_SOURCES=` force-disables building things with -mbulk-memory,
# which wasm2c doesn't support yet.
make \
PREFIX=/wasi \
build/wasi-libc.BUILT \
build/libcxx.BUILT \
mv build/install/wasi/share/wasi-sysroot $sysroot
tar --zstd -cf $artifact $sysroot
mkdir -p $UPLOAD_DIR
mv $artifact $UPLOAD_DIR/