name: Bob the Builder

on:
  push:
    branches:
      - '*'

env:
  # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners
  MAKEFLAGS: -j3

jobs:
  build:
    strategy:
      matrix:
        name: [ ubuntu-latest-gcc, ubuntu-latest-clang, macos-latest-clang ]
        include:
          - name: ubuntu-latest-gcc
            os: ubuntu-latest
            cc: gcc
          - name: ubuntu-latest-clang
            os: ubuntu-latest
            cc: clang
          - name: macos-latest-clang
            os: macos-latest
            cc: clang

    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v2
      - name: Install MacOS dependencies
        if: startsWith(matrix.os,'macos')
        run: |
          brew update
          brew install automake tree doxygen
      - name: Install Linux dependencies
        if: startsWith(matrix.os,'ubuntu')
        run: |
          sudo apt-get update
          sudo apt-get install -y build-essential autoconf automake clang tree doxygen
      - name: Configure
        run: |
          ./autogen.sh
          ./configure --prefix=/usr CC=${{ matrix.cc }}
      - name: Build
        run: |
          make V=1
          make install-strip DESTDIR=/tmp
          tree /tmp/usr