class Libbpf < Formula
  desc "Berkeley Packet Filter library"
  homepage "https://github.com/libbpf/libbpf"
  url "https://github.com/libbpf/libbpf/archive/refs/tags/v1.5.1.tar.gz"
  sha256 "e5ff89750e48ab5ecdfc02a759aa0dacd1e7980e98e16bdb4bfa8ff0b3b4b98f"
  license "BSD-2-Clause"

  bottle do
    sha256 cellar: :any_skip_relocation, arm64_linux:  "8c72de89080be7e7cdf36aa77682708562ad73dedb234f34ceebf1c4e068bd7b"
    sha256 cellar: :any_skip_relocation, x86_64_linux: "0c04b2d4c14b62ae7a30ae5cbbec288c3b2961de0a684f96f2c9c2ec41d240cf"
  end

  depends_on "pkgconf" => :build
  depends_on "elfutils"
  depends_on :linux
  depends_on "zlib"

  def install
    system "make", "-C", "src"
    system "make", "-C", "src", "install", "PREFIX=#{prefix}", "LIBDIR=#{lib}"
  end

  test do
    (testpath/"test.c").write <<~C
      #include "bpf/libbpf.h"
      #include <stdio.h>

      int main() {
        printf("%s", libbpf_version_string());
        return(0);
      }
    C
    system ENV.cc, "test.c", "-I#{include}", "-L#{lib}", "-lbpf", "-o", "test"
    system "./test"
  end
end