Switch from Travis to Github actions (lsh123#301)

Author: lsh123

.github/workflows/make-check.yml

@@ -0,0 +1,45 @@
+name: C/C++ CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        include:
+        - os: ubuntu-latest
+          BUILD_TOOLS_INSTALL: sudo apt install automake autoconf libtool libtool-bin libltdl-dev libltdl7
+          LIBXML2_INSTALL: sudo apt install libxml2 libxml2-dev libxslt1.1 libxslt1-dev
+          CRYPTO_LIBS_INSTALL: sudo apt install libssl1.0.0 libssl-dev libnspr4 libnspr4-dev libnss3 libnss3-dev libnss3-tools libgcrypt20 libgcrypt20-dev libgnutls28-dev
+        - os: macos-latest
+          BUILD_TOOLS_INSTALL: brew install automake autoconf libtool
+          LIBXML2_INSTALL: brew install libxml2 libxslt
+          CRYPTO_LIBS_INSTALL: brew install openssl libgcrypt gnutls
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: install build tools
+      run: ${{matrix.BUILD_TOOLS_INSTALL}}
+    - name: install libxml2/libxslt
+      run: ${{matrix.LIBXML2_INSTALL}}
+    - name: install crypto libs
+      run: ${{matrix.CRYPTO_LIBS_INSTALL}}
+    - name: mkdir build
+      run: mkdir build
+    - name: configure
+      working-directory: build
+      run: ../autogen.sh --enable-werror
+    - name: make
+      working-directory: build
+      run: make
+    - name: make check
+      working-directory: build
+      run: make check
+