FROM ubuntu:jammy-20260509

ENV DEBIAN_FRONTEND=noninteractive

# Ensure /bin/sh is bash to improve compatibility with potential smoke tests
RUN ln -sf /bin/bash /bin/sh

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        libglfw3-dev \
        libsdl2-dev \
        gcc-multilib \
        g++-multilib \
        libfreetype6-dev \
        libvulkan-dev \
        build-essential \
        clang \
    && rm -rf /var/lib/apt/lists/*

# Copy the repository
WORKDIR /imgui
COPY . .

# Build from source (Linux example_null variants and freetype option)
RUN mkdir -p build && \
    make -C examples/example_null clean && \
    CXXFLAGS="$CXXFLAGS -m32 -Werror" make -C examples/example_null WITH_EXTRA_WARNINGS=1 && \
    CXXFLAGS="$CXXFLAGS -m64 -Werror" make -C examples/example_null WITH_EXTRA_WARNINGS=1 && \
    CXXFLAGS="$CXXFLAGS -m32 -Werror" CXX=clang++ make -C examples/example_null WITH_EXTRA_WARNINGS=1 && \
    CXXFLAGS="$CXXFLAGS -m64 -Werror" CXX=clang++ make -C examples/example_null WITH_EXTRA_WARNINGS=1 && \
    make -C examples/example_null clean && \
    make -C examples/example_null WITH_FREETYPE=1

CMD ["/bin/bash"]