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diff --git a/gnu/llvm/utils/docker/build_docker_image.sh b/gnu/llvm/utils/docker/build_docker_image.sh
new file mode 100755
index 00000000000..33f690ad5c4
--- /dev/null
+++ b/gnu/llvm/utils/docker/build_docker_image.sh
@@ -0,0 +1,159 @@
+#!/bin/bash
+#===- llvm/utils/docker/build_docker_image.sh ----------------------------===//
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+#===----------------------------------------------------------------------===//
+set -e
+
+IMAGE_SOURCE=""
+DOCKER_REPOSITORY=""
+DOCKER_TAG=""
+BUILDSCRIPT_ARGS=""
+
+function show_usage() {
+  usage=$(cat << EOF
+Usage: build_docker_image.sh [options] [-- [cmake_args]...]
+
+Available options:
+  General:
+    -h|--help               show this help message
+  Docker-specific:
+    -s|--source             image source dir (i.e. debian8, nvidia-cuda, etc)
+    -d|--docker-repository  docker repository for the image
+    -t|--docker-tag         docker tag for the image
+  LLVM-specific:
+    -b|--branch         svn branch to checkout, i.e. 'trunk',
+                        'branches/release_40'
+                        (default: 'trunk')
+    -r|--revision       svn revision to checkout
+    -p|--llvm-project   name of an svn project to checkout. Will also add the
+                        project to a list LLVM_ENABLE_PROJECTS, passed to CMake.
+                        For clang, please use 'clang', not 'cfe'.
+                        Project 'llvm' is always included and ignored, if
+                        specified.
+                        Can be specified multiple times.
+    -i|--install-target name of a cmake install target to build and include in
+                        the resulting archive. Can be specified multiple times.
+
+Required options: --source and --docker-repository, at least one
+  --install-target.
+
+All options after '--' are passed to CMake invocation.
+
+For example, running:
+$ build_docker_image.sh -s debian8 -d mydocker/debian8-clang -t latest \ 
+  -p clang -i install-clang -i install-clang-headers
+will produce two docker images:
+    mydocker/debian8-clang-build:latest - an intermediate image used to compile
+      clang.
+    mydocker/clang-debian8:latest       - a small image with preinstalled clang.
+Please note that this example produces a not very useful installation, since it
+doesn't override CMake defaults, which produces a Debug and non-boostrapped
+version of clang.
+
+To get a 2-stage clang build, you could use this command:
+$ ./build_docker_image.sh -s debian8 -d mydocker/clang-debian8 -t "latest" \ 
+    -p clang -i stage2-install-clang -i stage2-install-clang-headers \ 
+    -- \ 
+    -DLLVM_TARGETS_TO_BUILD=Native -DCMAKE_BUILD_TYPE=Release \ 
+    -DBOOTSTRAP_CMAKE_BUILD_TYPE=Release \ 
+    -DCLANG_ENABLE_BOOTSTRAP=ON \ 
+    -DCLANG_BOOTSTRAP_TARGETS="install-clang;install-clang-headers"
+EOF
+)
+  echo "$usage"
+}
+
+SEEN_INSTALL_TARGET=0
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    -h|--help)
+      show_usage
+      exit 0
+      ;;
+    -s|--source)
+      shift
+      IMAGE_SOURCE="$1"
+      shift
+      ;;
+    -d|--docker-repository)
+      shift
+      DOCKER_REPOSITORY="$1"
+      shift
+      ;;
+    -t|--docker-tag)
+      shift
+      DOCKER_TAG="$1"
+      shift
+      ;;
+    -i|--install-target|-r|--revision|-b|--branch|-p|--llvm-project)
+      if [ "$1" == "-i" ] || [ "$1" == "--install-target" ]; then
+        SEEN_INSTALL_TARGET=1
+      fi
+      BUILDSCRIPT_ARGS="$BUILDSCRIPT_ARGS $1 $2"
+      shift 2
+      ;;
+    --)
+      shift
+      BUILDSCRIPT_ARGS="$BUILDSCRIPT_ARGS -- $*"
+      shift $#
+      ;;
+    *)
+      echo "Unknown argument $1"
+      exit 1
+      ;;
+  esac
+done
+
+command -v docker >/dev/null ||
+  {
+    echo "Docker binary cannot be found. Please install Docker to use this script."
+    exit 1
+  }
+
+if [ "$IMAGE_SOURCE" == "" ]; then
+  echo "Required argument missing: --source"
+  exit 1
+fi
+
+if [ "$DOCKER_REPOSITORY" == "" ]; then
+  echo "Required argument missing: --docker-repository"
+  exit 1
+fi
+
+if [ $SEEN_INSTALL_TARGET -eq 0 ]; then
+  echo "Please provide at least one --install-target"
+  exit 1
+fi
+
+cd $(dirname $0)
+if [ ! -d $IMAGE_SOURCE ]; then
+  echo "No sources for '$IMAGE_SOURCE' were found in $PWD"
+  exit 1
+fi
+
+echo "Building from $IMAGE_SOURCE"
+
+if [ "$DOCKER_TAG" != "" ]; then
+  DOCKER_TAG=":$DOCKER_TAG"
+fi
+
+echo "Building $DOCKER_REPOSITORY-build$DOCKER_TAG"
+docker build -t "$DOCKER_REPOSITORY-build$DOCKER_TAG" \
+  --build-arg "buildscript_args=$BUILDSCRIPT_ARGS" \
+  -f "$IMAGE_SOURCE/build/Dockerfile" .
+
+echo "Copying clang installation to release image sources"
+docker run -v "$PWD/$IMAGE_SOURCE:/workspace" "$DOCKER_REPOSITORY-build$DOCKER_TAG" \
+  cp /tmp/clang.tar.gz /workspace/release
+trap "rm -f $PWD/$IMAGE_SOURCE/release/clang.tar.gz" EXIT
+
+echo "Building release image"
+docker build -t "${DOCKER_REPOSITORY}${DOCKER_TAG}" \
+  "$IMAGE_SOURCE/release"
+
+echo "Done"