initial commit of github actions

.github/workflows/github-actions-build.yml

@@ -0,0 +1,37 @@
+---
+
+name: Build
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+
+      matrix:
+        os: [ubuntu-latest, ubuntu-22.04, macOS-14, macOS-15]
+        compiler: [gcc, clang]
+        exclude:
+          - os: macOS-14
+            compiler: gcc
+          - os: macOS-15
+            compiler: gcc
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install libpcap-dev
+        if: contains(matrix.os, 'ubuntu')
+        run: sudo apt install -y libpcap-dev
+
+      - name: Compile using ${{ matrix.compiler }}
+        run: make CC=${{ matrix.compiler }}
+
+      - name: Install
+        run: sudo make install
+
+      - name: Execute
+        run: /usr/local/sbin/ifpstat -v
+
+...

Makefile

@@ -3,7 +3,7 @@ MANDIR=/usr/local/share/man/man1
 
 VERSION=1.0.2
 
-CC=cc
+CC?=cc
 CFLAGS=-O2 -W -Wall -Wno-unused-parameter
 LIBS=-lpcap