class Libmill < Formula
  desc "Go-style concurrency in C"
  homepage "http://libmill.org/"
  url "http://libmill.org/libmill-1.17.tar.gz"
  sha256 "ada513275d8d5a2ce98cdbc47ad491bfb10f5e9a5429656e539a5889f863042d"
  head "https://github.com/sustrik/libmill.git"

  bottle do
    cellar :any
    sha256 "87f7c6a68ad1018d2a8b11eacba35a9e1414ade0f8044d40103c0c89e42c7324" => :sierra
    sha256 "a96990618d70fd944a8b80f61ab73aa4407ef6873bfa3bf9ca4b6bad066a762f" => :el_capitan
    sha256 "fe7866efb6ec01c4cdd85f0844b38b1218e2807343cc4e885ed21bb4aed624a3" => :yosemite
  end

  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "libtool" => :build

  def install
    system "./autogen.sh" if build.head?
    system "./configure", "--prefix=#{prefix}"
    system "make", "all", "check", "install"
  end

  test do
    (testpath/"test.c").write <<-EOS.undent
      #include <stdio.h>
      #include <libmill.h>

      void worker(int count, const char *text) {
          int i;
          for(i = 0; i != count; ++i) {
              printf("%s\\n", text);
              msleep(10);
          }
      }

      int main() {
          go(worker(4, "a"));
          go(worker(2, "b"));
          go(worker(3, "c"));
          msleep(100);
          return 0;
      }
    EOS
    system ENV.cc, "test.c", "-L#{lib}", "-lmill", "-o", "test"
    system "./test"
  end
end