Dockerfile

# Docker image with a build toolchain and environment variables set to use
# the wasix-sdk sysroot.

FROM ubuntu:22.04

ENV LLVM_VERSION 16

# Install build toolchain including clang, ld, make, autotools, ninja, and cmake
RUN apt-get update && \
    # Temporarily install to setup apt repositories
    apt-get install -y curl gnupg && \
\
    curl -sS https://apt.llvm.org/llvm-snapshot.gpg.key | gpg --dearmor > /etc/apt/trusted.gpg.d/llvm.gpg && \
    echo "deb [signed-by=/etc/apt/trusted.gpg.d/llvm.gpg] http://apt.llvm.org/jammy/ llvm-toolchain-jammy-${LLVM_VERSION} main" >> /etc/apt/sources.list.d/llvm.list && \
    echo "deb-src [signed-by=/etc/apt/trusted.gpg.d/llvm.gpg] http://apt.llvm.org/jammy/ llvm-toolchain-jammy-${LLVM_VERSION} main" >> /etc/apt/sources.list.d/llvm.list && \
\
    apt-get update && \
    apt-get install -y clang-${LLVM_VERSION} lld-${LLVM_VERSION} cmake ninja-build make autoconf autogen automake libtool && \
    apt-get remove -y curl gnupg && \
    rm -rf /var/lib/apt/lists/*

COPY wasix-sysroot /wasix-sysroot

ADD wasix-sdk.cmake /usr/share/cmake/wasix-sdk.cmake
ENV CMAKE_TOOLCHAIN_FILE /usr/share/cmake/wasix-sdk.cmake
ADD WASIX.cmake /usr/share/cmake/Modules/Platform/WASIX.cmake

ENV CC clang-${LLVM_VERSION}
ENV CXX clang++-${LLVM_VERSION}
ENV LD wasm-ld-${LLVM_VERSION}
ENV AR llvm-ar-${LLVM_VERSION}
ENV RANLIB llvm-ranlib-${LLVM_VERSION}
ENV NM llvm-nm-${LLVM_VERSION}

ENV CFLAGS "--target=wasm32-wasmer-wasi --sysroot=/wasix-sysroot"
ENV CXXFLAGS $CFLAGS -fno-exceptions
ENV LDFLAGS --target=wasm32-wasmer-wasi --sysroot=/wasix-sysroot