Build zcash on any system w/ Docker+bash via ./contrib/dev-docker/run.sh.

contrib/dev-docker/Dockerfile

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+# Reference: https://zcash.readthedocs.io/en/latest/rtd_pages/Debian-Ubuntu-build.html "building from source"
+FROM debian:stretch
+
+RUN DEBIAN_FRONTEND=noninteractive \
+        apt-get update && \
+    DEBIAN_FRONTEND=noninteractive \
+        apt-get install -qq \
+            autoconf \
+            automake \
+            bsdmainutils \
+            build-essential \
+            curl \
+            g++-multilib \
+            git \
+            libc6-dev \
+            libtool \
+            m4 \
+            ncurses-dev \
+            pkg-config \
+            python3 \
+            python3-zmq \
+            unzip \
+            zlib1g-dev
+
+ARG BUILDER_UID
+RUN adduser \
+        --uid "$BUILDER_UID" \
+        --no-create-home \
+        --disabled-password \
+        --gecos '' \
+        builder
+
+USER builder
+
+ENTRYPOINT ["/workspace/zcutil/build.sh"]

contrib/dev-docker/README.md

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+# zcash development Dockerfile
+
+This Dockerfile provides the build toolchain for building zcashd via `/zcutil/build.sh'. The entrypoint is that build script, so that anyone with docker can do development builds without installing the dev toolchain directly.
+
+## Wrapper script
+
+A wrapper script `./run.sh` will build and run the image with the appropriate bind mount and other settings so that the resulting change to the repo directory is the same as if a user had run `./zcutil/build.sh` with the dev toolchain installed locally.

contrib/dev-docker/run.sh

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+#!/bin/bash
+set -efuxo pipefail
+
+# cd to the repo root:
+cd "$(readlink -f "$0/../../../")"
+docker build \
+    -t zcash-dev-docker \
+    --build-arg "BUILDER_UID=$(id -u)" \
+    ./contrib/dev-docker/
+
+exec docker run \
+    -v "$(pwd)/:/workspace" \
+    zcash-dev-docker \
+    "$@"