Add Github Action to build check

.github/workflows/build.yml

@@ -0,0 +1,58 @@
+name: Build check
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  macos_macports_build_job:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-12, macos-14]
+    runs-on: ${{ matrix.os }}
+    name: Build on ${{ matrix.os }} (macports)
+    steps:
+      - uses: actions/checkout@v4
+      - uses: melusina-org/setup-macports@v1
+      - name: Install ports
+        run: port install SoapySDR rtl-sdr
+      - name: Configure
+        run: cmake -B build
+      - name: Build
+        run: cmake --build build
+
+  macos_homebrew_build_job:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-12, macos-14]
+    runs-on: ${{ matrix.os }}
+    name: Build on ${{ matrix.os }} (homebrew)
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup tools
+        run: brew install soapysdr librtlsdr
+      - name: Configure
+        run: cmake -B build
+      - name: Build
+        run: cmake --build build
+
+  linux_build_job:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, ubuntu-22.04]
+    runs-on: ${{ matrix.os }}
+    name: Build on ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup tools
+        run: |
+          sudo apt-get update -q -y
+          sudo apt-get install -y --no-install-recommends cmake ninja-build
+          sudo apt-get install -q -y libsoapysdr-dev librtlsdr-dev
+      - name: Configure
+        run: cmake -GNinja -B build
+      - name: Build
+        run: cmake --build build