Homebrew formula for https://github.com/Yubico/libu2f-server

libu2f-server.rb

class Libu2fServer < Formula
  desc "Yubico Universal 2nd Factor (U2F) Server C Library"
  homepage "https://developers.yubico.com/libu2f-server/"
  url "https://developers.yubico.com/libu2f-server/Releases/libu2f-server-1.0.1.tar.xz"
  version "1.0.1"
  sha256 "a618f59051209d6d70c24cf42d64c9b67bd7dd5946b6dbd2c649181d7e8f1f6e"

  depends_on "check" => :build
  depends_on "json-c"
  depends_on "openssl"

  def install
    args = ["--prefix=#{prefix}"]
    ENV["LIBSSL_LIBS"] = "-lssl -lcrypto -lz"
    ENV["LIBCRYPTO_LIBS"] = "-lcrypto -lz"

    ENV["HELP2MAN"] = "/usr/local/bin/help2man --no-discard-stderr"
    ENV["PKG_CONFIG"] = "/usr/local/bin/pkg-config"

    system "./configure", *args
    system "make", "install"
  end
end