name: "CI: autotools: clang 9"

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest
    container: ubuntu:20.04

    steps:
    - uses: actions/checkout@v1
    - name: Build
      run: |
        # Prevent blocking apt install on a question during configuring of tzdata.
        export ENV DEBIAN_FRONTEND=noninteractive
        apt update
        apt install mm-common clang-9 make --yes
        export CXX=clang++-9
        ./autogen.sh --enable-warnings=fatal
        make
    - name: Test
      run: make check
    - name: Distcheck
      run: |
        # distcheck runs configure again so we need to specify CXX again.
        export CXX=clang++-9
        make distcheck