Dockerfile

ARG BASE_IMAGE=debian:bullseye-slim
FROM $BASE_IMAGE AS xorg-deps

WORKDIR /xorg

ENV DEBIAN_FRONTEND=noninteractive
RUN set -eux; \
    apt-get update; \
    apt-get install -y \
        git gcc pkgconf autoconf automake libtool make xorg-dev xutils-dev \
    && rm -rf /var/lib/apt/lists/*;

COPY . /xorg/

# build xf86-video-dummy v0.3.8 with RandR support
RUN set -eux; \
    cd xf86-video-dummy/v0.3.8; \
    patch -p1 < ../01_v0.3.8_xdummy-randr.patch; \
    autoreconf -v --install; \
    ./configure; \
    make -j$(nproc); \
    make install;

# build custom input driver
RUN set -eux; \
    cd xf86-input-neko; \
    ./autogen.sh --prefix=/usr; \
    ./configure; \
    make -j$(nproc); \
    make install;

# artifacts from this stage
# COPY --from=xorg-deps /usr/local/lib/xorg/modules/drivers/dummy_drv.so /usr/lib/xorg/modules/drivers/dummy_drv.so
# COPY --from=xorg-deps /usr/local/lib/xorg/modules/input/neko_drv.so /usr/lib/xorg/modules/input/neko_drv.so