Add Github Workflows support

.github/workflows/CI.yml

@@ -0,0 +1,27 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  release:
+    types:
+      - created
+
+jobs:
+  build-linux:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Check out repository code
+        uses: "actions/checkout@v3"
+      - name: Install dependencies
+        if: matrix.os == 'ubuntu-latest' || matrix.os == 'debian-latest'
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install libsdl1.2-dev
+      - name: Build
+        run: |
+          make

README.md

@@ -1,7 +1,7 @@
 libndofdev
 ==========
 
-[![Build Status](https://travis-ci.org/janoc/libndofdev.svg?branch=master)](https://travis-ci.org/janoc/libndofdev)
+[![CI](https://github.com/janoc/libndofdev/actions/workflows/CI.yml/badge.svg)](https://github.com/janoc/libndofdev/actions/workflows/CI.yml)
 
 Linux support for the 3Dconnexion SpaceBall, SpaceNavigator and joysticks in the SecondLife clients