upgrade dobuild to newer version

- fixes incompatibilities
- renames amd64 arch to x86_64 (uname -m)

build/x86_64-ubuntu-builder.dockerfile

@@ -0,0 +1,101 @@
+ARG REGISTRY_PREFIX=''
+ARG DISTRIB_VERSION=bionic
+
+FROM ${REGISTRY_PREFIX}ubuntu:${DISTRIB_VERSION} as builder
+
+RUN set -x \
+  && apt update \
+  && apt upgrade -y \
+  && apt install --yes --no-install-recommends \
+       build-essential \
+       cmake \
+       ninja-build \
+       pkg-config \
+       rsync \
+       gdb \
+       gdbserver \
+       valgrind \
+       lcov 
+
+COPY src /usr/local/src
+
+ARG PARALLELMFLAGS=-j2
+
+ARG DUMB_INIT_VERSION=1.2.2
+
+RUN set -x \
+  && builddeps="xxd" \
+  && apt install --yes --no-install-recommends $builddeps \
+  && builddir="/tmp/out" \
+  && mkdir -p "$builddir" \
+  && cd "$builddir" \
+  && cp -R "/usr/local/src/dumb-init-$DUMB_INIT_VERSION" . \
+  && cd "dumb-init-$DUMB_INIT_VERSION" \
+  && make "$PARALLELMFLAGS" \
+  && chmod +x dumb-init \
+  && mv dumb-init /usr/local/bin/dumb-init \
+  && dumb-init --version \
+  && rm -rf "$builddir" \
+  && apt purge -y $builddeps
+
+ARG GTEST_VERSION=1.10.0
+
+RUN set -x \
+  && builddir="/tmp/out" \
+  && mkdir -p "$builddir" \
+  && cd "$builddir" \
+  && cmake "/usr/local/src/googletest-release-$GTEST_VERSION" \
+  && make "$PARALLELMFLAGS" install \
+  && rm -rf "$builddir"
+
+ARG FUSE_VERSION=3.9.1
+
+RUN set -x \
+  && builddeps="udev gettext python3 python3-pip python3-setuptools python3-wheel" \
+  && apt install --yes --no-install-recommends $builddeps \
+  && pip3 install --system meson \
+  && builddir="/tmp/out" \
+  && mkdir -p "$builddir" \
+  && cd "$builddir" \
+  && meson "/usr/local/src/libfuse-fuse-$FUSE_VERSION" \
+  && meson configure -Dexamples=false \
+  && ninja \
+  && ninja install \
+  && pip3 uninstall -y meson \
+  && rm -rf "$builddir" \
+  && apt purge -y $builddeps
+
+ARG WEBSOCKETS_VERSION=4.0.10
+
+RUN set -x \
+  && apt install --yes --no-install-recommends \
+       ca-certificates \
+       openssl \
+       libssl-dev \
+  && builddir="/tmp/out" \
+  && mkdir -p "$builddir" \
+  && cd "$builddir" \
+  && cmake "/usr/local/src/libwebsockets-$WEBSOCKETS_VERSION" \
+  && make "$PARALLELMFLAGS" install \
+  && rm -rf "$builddir"
+
+ARG JANSSON_VERSION=2.12
+
+RUN set -x \
+  && builddir="/tmp/out" \
+  && mkdir -p "$builddir" \
+  && cd "$builddir" \
+  && cmake -DJANSSON_BUILD_DOCS=OFF "/usr/local/src/jansson-$JANSSON_VERSION" \
+  && make "$PARALLELMFLAGS" install \
+  && rm -rf "$builddir"
+
+ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib"
+
+ARG USERID=1000
+
+RUN set -x \
+  && useradd -u "$USERID" -ms /bin/bash user
+
+ENTRYPOINT ["dumb-init", "--"]
+CMD [ "/bin/bash" ]
+