Use github actions instead of travis for CI.

.github/workflows/ci.yml

@@ -0,0 +1,362 @@
+name: asio CI
+
+on:
+  push:
+    branches: [ master, citest-*, github-actions-1 ]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        build-type: ['sanity']
+        runs-on: [ubuntu-18.04, ubuntu-20.04, macos-latest]
+        compiler: [g++-4.8, g++-5, g++-6, g++-7, g++-8, g++-9, g++-10, clang++-10, g++]
+        cxx-std: ['c++03', 'c++11', 'c++14', 'c++17', 'c++2a']
+        separate-compilation: ['', '--enable-separate-compilation']
+        optim-level: ['-O0']
+        no-deprecated: ['']
+        select-reactor: ['', '-DASIO_DISABLE_EPOLL', '-DASIO_DISABLE_KQUEUE']
+        handler-tracking: ['']
+        boost: ['']
+        boost-url: ['']
+        exclude:
+          # Newer compilers don't run on ubuntu 18.04
+          - runs-on: ubuntu-18.04
+            compiler: g++
+          - runs-on: ubuntu-18.04
+            compiler: g++-7
+          - runs-on: ubuntu-18.04
+            compiler: g++-8
+          - runs-on: ubuntu-18.04
+            compiler: g++-9
+          - runs-on: ubuntu-18.04
+            compiler: g++-10
+          - runs-on: ubuntu-18.04
+            compiler: clang++-10
+          # Older compilers don't run on ubuntu 20.04
+          - runs-on: ubuntu-20.04
+            compiler: g++
+          - runs-on: ubuntu-20.04
+            compiler: g++-4.8
+          - runs-on: ubuntu-20.04
+            compiler: g++-4.9
+          - runs-on: ubuntu-20.04
+            compiler: g++-5
+          - runs-on: ubuntu-20.04
+            compiler: g++-6
+          # Versioned g++ and clang++ don't run on macOS
+          - runs-on: macos-latest
+            compiler: g++-4.8
+          - runs-on: macos-latest
+            compiler: g++-4.9
+          - runs-on: macos-latest
+            compiler: g++-5
+          - runs-on: macos-latest
+            compiler: g++-6
+          - runs-on: macos-latest
+            compiler: g++-7
+          - runs-on: macos-latest
+            compiler: g++-8
+          - runs-on: macos-latest
+            compiler: g++-9
+          - runs-on: macos-latest
+            compiler: g++-10
+          - runs-on: macos-latest
+            compiler: clang++-10
+          # Older compilers don't support newer std variants
+          - compiler: g++-4.8
+            cxx-std: c++14
+          - compiler: g++-4.8
+            cxx-std: c++17
+          - compiler: g++-4.8
+            cxx-std: c++2a
+          - compiler: g++-5
+            cxx-std: c++2a
+          - compiler: g++-6
+            cxx-std: c++2a
+          - compiler: g++-7
+            cxx-std: c++2a
+          # Specifying the select reactor is OS-specific
+          - runs-on: ubuntu-18.04
+            select-reactor: -DASIO_DISABLE_KQUEUE
+          - runs-on: ubuntu-20.04
+            select-reactor: -DASIO_DISABLE_KQUEUE
+          - runs-on: macos-latest
+            select-reactor: -DASIO_DISABLE_EPOLL
+          # Trim builds that use separate compilation
+          - compiler: g++-5
+            separate-compilation: --enable-separate-compilation
+          - compiler: g++-6
+            separate-compilation: --enable-separate-compilation
+          - compiler: g++-7
+            separate-compilation: --enable-separate-compilation
+          - compiler: g++-8
+            separate-compilation: --enable-separate-compilation
+          - compiler: g++-9
+            separate-compilation: --enable-separate-compilation
+          - runs-on: macos-latest
+            cxx-std: c++14
+            separate-compilation: --enable-separate-compilation
+          - runs-on: macos-latest
+            cxx-std: c++17
+            separate-compilation: --enable-separate-compilation
+          # Trim builds that use select reactor
+          - compiler: g++-5
+            select-reactor: -DASIO_DISABLE_EPOLL
+          - compiler: g++-6
+            select-reactor: -DASIO_DISABLE_EPOLL
+          - compiler: g++-7
+            select-reactor: -DASIO_DISABLE_EPOLL
+          - compiler: g++-8
+            select-reactor: -DASIO_DISABLE_EPOLL
+          - compiler: g++-9
+            select-reactor: -DASIO_DISABLE_EPOLL
+          # C++03 builds are always explicitly included
+          - cxx-std: c++03
+        include:
+          #
+          # Linux / g++-10 -std=c++2a / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: ubuntu-20.04
+            compiler: g++-10
+            cxx-std: c++2a
+            optim-level: -O2
+          #
+          # Linux / g++-10 -std=c++17 / -O2 / boost 1.73
+          #
+          - build-type: full
+            runs-on: ubuntu-20.04
+            compiler: g++-10
+            cxx-std: c++17
+            optim-level: -O2
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_73_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.73.0/boost_1_73_0.tar.bz2/download
+          #
+          # Linux / g++-9 -std=c++14 / -O0 / standalone / separate compilation
+          #
+          - build-type: full
+            runs-on: ubuntu-20.04
+            compiler: g++-9
+            cxx-std: c++14
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+          #
+          # Linux / g++-6 / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-6
+            cxx-std: c++14
+            optim-level: -O2
+          #
+          # Linux / g++-6 / -O0 / standalone / handler tracking
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-6
+            cxx-std: c++14
+            optim-level: -O0
+            handler-tracking: -DASIO_ENABLE_HANDLER_TRACKING
+          #
+          # Linux / g++-6 / -O0 / standalone / epoll disabled
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-6
+            cxx-std: c++14
+            optim-level: -O0
+            select-reactor: -DASIO_DISABLE_EPOLL
+          #
+          # Linux / g++-6 / -O0 / standalone / separate compilation / handler tracking
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-6
+            cxx-std: c++14
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+            handler-tracking: -DASIO_ENABLE_HANDLER_TRACKING
+          #
+          # Linux / g++-6 / -O0 / standalone / separate compilation / epoll disabled
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-6
+            cxx-std: c++14
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+            select-reactor: -DASIO_DISABLE_EPOLL
+          #
+          # Linux / g++-6 / -O2 / boost 1.64
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-10
+            cxx-std: c++14
+            optim-level: -O2
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+          #
+          # Linux / g++-6 / -O0 / boost 1.64 / epoll disabled
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-10
+            cxx-std: c++14
+            optim-level: -O0
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+            select-reactor: -DASIO_DISABLE_EPOLL
+          #
+          # Linux / g++-6 / -O0 / boost 1.64 / separate compilation
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-10
+            cxx-std: c++14
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+          #
+          # Linux / g++-4.8 / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-4.8
+            cxx-std: c++11
+            optim-level: -O2
+          #
+          # Linux / g++-4.8 / -O0 / standalone / separate compilation
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-4.8
+            cxx-std: c++11
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+          #
+          # Linux / g++-4.8 / -O2 / boost 1.64
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-4.8
+            cxx-std: c++03
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O2
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+          #
+          # Linux / g++-4.8 -std=c++11 / -O2 / boost 1.64
+          #
+          - build-type: full
+            runs-on: ubuntu-18.04
+            compiler: g++-4.8
+            cxx-std: c++11
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O2
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+          #
+          # Linux / clang++-10 -std=c++2a / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: ubuntu-20.04
+            compiler: clang++-10
+            cxx-std: c++2a
+            optim-level: -O2
+          #
+          # Linux / clang++-10 -std=c++11 / -O0 / standalone / separate compilation
+          #
+          - build-type: full
+            runs-on: ubuntu-20.04
+            compiler: clang++-10
+            cxx-std: c++11
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+          #
+          # macOS / c++2a -fcoroutines-ts / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++2a -fcoroutines-ts
+            optim-level: -O2
+          #
+          # macOS / c++11 / -O2 / standalone
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++11
+            optim-level: -O2
+          #
+          # macOS / c++11 / -O0 / standalone / kqueue disabled
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++11
+            optim-level: -O0
+            select-reactor: -DASIO_DISABLE_KQUEUE
+          #
+          # macOS / c++11 / -O0 / standalone / separate compilation
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++11
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+          #
+          # macOS / c++03 / -O2 / boost 1.64
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++03
+            optim-level: -O2
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+          #
+          # macOS / c++03 / -O2 / boost 1.64 / separate compilation
+          #
+          - build-type: full
+            runs-on: macos-latest
+            compiler: g++
+            cxx-std: c++03
+            separate-compilation: --enable-separate-compilation
+            optim-level: -O0
+            with-boost: --with-boost=$GITHUB_WORKSPACE/boost_1_64_0
+            boost-url: https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download
+    runs-on: ${{ matrix.runs-on }}
+    env:
+      CXX: ${{ matrix.compiler }}
+      CXXFLAGS: -std=${{ matrix.cxx-std }} ${{ matrix.optim-level }} -Wall -Wextra ${{ matrix.no-deprecated }} ${{ matrix.select-reactor }} ${{ matrix.handler-tracking }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install autotools
+      if: startsWith(matrix.runs-on, 'macos')
+      run: brew install automake
+    - name: Install compiler
+      if: startsWith(matrix.runs-on, 'ubuntu')
+      run: sudo apt-get install -y ${{ matrix.compiler }}
+    - name: Install boost
+      if: startsWith(matrix.with-boost, '--with-boost=$GITHUB_WORKSPACE')
+      run: |
+        wget --quiet -O - ${{ matrix.boost-url }} | tar -xj
+    - name: Configure
+      working-directory: asio
+      run: |
+        ./autogen.sh
+        ./configure ${{ matrix.separate-compilation }} ${{ matrix.with-boost }}
+    - name: Sanity check
+      if: startsWith(matrix.build-type, 'sanity')
+      working-directory: asio/src/tests
+      run: make unit/io_context.log unit/ip/tcp.log unit/ts/net.log
+    - name: Build
+      if: startsWith(matrix.build-type, 'full')
+      working-directory: asio
+      run: make && make check

.travis.yml

@@ -1,372 +0,0 @@
-language: cpp
-os: linux
-dist: xenial
-
-cache:
-  directories:
-    - ${TRAVIS_BUILD_DIR}/boost_1_64_0
-    - ${TRAVIS_BUILD_DIR}/boost_1_73_0
-
-matrix:
-  include:
-    #
-    #---------------------------------------------------------------------------
-    # Linux / g++-9
-    #---------------------------------------------------------------------------
-    #
-    # Linux / g++-9 -std=c++2a / -O2 / standalone
-    #
-    - os: linux
-      dist: bionic
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-9
-      env:
-        - CXXFLAGS="-std=c++2a -fconcepts -Wall -Wextra -O2"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=gcc-9 CXX=g++-9"
-      compiler: gcc
-    #
-    # Linux / g++-9 -std=c++17 / -O2 / boost 1.73
-    #
-    - os: linux
-      dist: bionic
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-9
-      env:
-        - BOOST_DIR="boost_1_73_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.73.0/boost_1_73_0.tar.bz2/download"
-        - CXXFLAGS="-std=c++17 -Wall -Wextra -O2"
-        - CONFIGFLAGS="--with-boost=$PWD/$BOOST_DIR"
-        - MATRIX_EVAL="CC=gcc-9 CXX=g++-9"
-      compiler: gcc
-    #
-    # Linux / g++-9 -std=c++14 / -O0 / standalone / separate compilation
-    #
-    - os: linux
-      dist: bionic
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-9
-      env:
-        - CXXFLAGS="-std=c++14 -Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-        - MATRIX_EVAL="CC=gcc-9 CXX=g++-9"
-      compiler: gcc
-    #
-    #---------------------------------------------------------------------------
-    # Linux / g++-6
-    #---------------------------------------------------------------------------
-    #
-    # Linux / g++-6 / -O2 / standalone
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / standalone / handler tracking
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_ENABLE_HANDLER_TRACKING"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / standalone / epoll disabled
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_DISABLE_EPOLL"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / standalone / separate compilation / handler tracking
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_ENABLE_HANDLER_TRACKING"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / standalone / separate compilation / epoll disabled
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_DISABLE_EPOLL"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O2 / boost 1.64
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS=""
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / boost 1.64 / epoll disabled
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_DISABLE_EPOLL"
-        - CONFIGFLAGS=""
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    # Linux / g++-6 / -O0 / boost 1.64 / separate compilation
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-6
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--enable-separate-compilation"
-        - MATRIX_EVAL="CC=gcc-6 CXX=g++-6"
-      compiler: gcc
-    #
-    #---------------------------------------------------------------------------
-    # Linux / g++-4.8
-    #---------------------------------------------------------------------------
-    #
-    # Linux / g++-4.8 / -O2 / standalone
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-4.8
-      env:
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=gcc-4.8 CXX=g++-4.8"
-      compiler: gcc
-    #
-    # Linux / g++-4.8 / -O0 / standalone / separate compilation
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-4.8
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-        - MATRIX_EVAL="CC=gcc-4.8 CXX=g++-4.8"
-      compiler: gcc
-    #
-    # Linux / g++-4.8 / -O2 / boost 1.64
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-4.8
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS=""
-        - MATRIX_EVAL="CC=gcc-4.8 CXX=g++-4.8"
-      compiler: gcc
-    #
-    # Linux / g++-4.8 -std=c++11 / -O2 / boost 1.64
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-4.8
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-std=c++11 -Wall -Wextra -O2"
-        - CONFIGFLAGS=""
-        - MATRIX_EVAL="CC=gcc-4.8 CXX=g++-4.8"
-      compiler: gcc
-    #
-    #---------------------------------------------------------------------------
-    # Linux / clang-3.8
-    #---------------------------------------------------------------------------
-    #
-    # Linux / clang-3.8 / -O2 / standalone"
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.8
-          packages:
-            - clang-3.8
-      env:
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS="--with-boost=no"
-        - MATRIX_EVAL="CC=clang-3.8 CXX=clang++-3.8"
-      compiler: clang
-    #
-    # Linux / clang-3.8 / -O0 / standalone / separate compilation
-    #
-    - os: linux
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.8
-          packages:
-            - clang-3.8
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-        - MATRIX_EVAL="CC=clang-3.8 CXX=clang++-3.8"
-      compiler: clang
-    #
-    #---------------------------------------------------------------------------
-    # macOS / xcode10.1
-    #---------------------------------------------------------------------------
-    #
-    # macOS / xcode10.1 / -std=c++2a -fcoroutines-ts -O2 / standalone
-    #
-    - os: osx
-      env:
-        - CXXFLAGS="-std=c++2a -fcoroutines-ts -Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no"
-      osx_image: xcode10.1
-    #
-    # macOS / xcode10.1 / -O2 / standalone
-    #
-    - os: osx
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no"
-      osx_image: xcode10.1
-    #
-    # macOS / xcode10.1 / -O0 / standalone / kqueue disabled
-    #
-    - os: osx
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline -DASIO_DISABLE_KQUEUE"
-        - CONFIGFLAGS="--with-boost=no"
-      osx_image: xcode10.1
-    #
-    # macOS / xcode10.1 / -O0 / standalone / separate compilation
-    #
-    - os: osx
-      env:
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--with-boost=no --enable-separate-compilation"
-      osx_image: xcode10.1
-    #
-    # macOS / xcode10.1 / -O2 / boost 1.64
-    #
-    - os: osx
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O2"
-        - CONFIGFLAGS=""
-      osx_image: xcode10.1
-    #
-    # macOS / xcode10.1 / -O0 / boost 1.64 / separate compilation
-    #
-    - os: osx
-      env:
-        - BOOST_DIR="boost_1_64_0"
-        - BOOST_URL="https://sourceforge.net/projects/boost/files/boost/1.64.0/boost_1_64_0.tar.bz2/download"
-        - CXXFLAGS="-Wall -Wextra -O0 -fno-inline"
-        - CONFIGFLAGS="--enable-separate-compilation"
-      osx_image: xcode10.1
-
-before_install:
-  - eval "${MATRIX_EVAL}"
-
-install:
-  - |
-    if [[ "${BOOST_URL}" != "" ]]; then
-      if [[ -z "$(ls -A ${BOOST_DIR})" ]]; then
-        { travis_retry wget --quiet -O - ${BOOST_URL} | tar -xj; } || exit 1
-      fi
-    fi
-
-script:
-  - cd asio && ./autogen.sh && ./configure $CONFIGFLAGS && make && make check
-
-notifications:
-  email: false