-# Using ubuntu 19.04 for newer `unshare` command used in tests
-FROM ubuntu:19.04
+FROM ubuntu:18.04
ARG LLVM_VERSION="8"
ENV LLVM_VERSION=$LLVM_VERSION
RUN apt-get update && apt-get install -y curl gnupg &&\
llvmRepository="\n\
-deb http://apt.llvm.org/disco/ llvm-toolchain-disco main\n\
-deb-src http://apt.llvm.org/disco/ llvm-toolchain-disco main\n\
-deb http://apt.llvm.org/disco/ llvm-toolchain-disco-${LLVM_VERSION} main\n\
-deb-src http://apt.llvm.org/disco/ llvm-toolchain-disco-${LLVM_VERSION} main\n" &&\
+deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic main\n\
+deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic main\n\
+deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-${LLVM_VERSION} main\n\
+deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-${LLVM_VERSION} main\n" &&\
echo $llvmRepository >> /etc/apt/sources.list && \
curl -L https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
RUN apt-get update && apt-get install -y \
+ util-linux \
bison \
binutils-dev \
cmake \