class Gperftools < Formula
  desc "Multi-threaded malloc() and performance analysis tools"
  homepage "https://github.com/gperftools/gperftools"
  url "https://github.com/gperftools/gperftools/releases/download/gperftools-2.7/gperftools-2.7.tar.gz"
  sha256 "1ee8c8699a0eff6b6a203e59b43330536b22bbcbe6448f54c7091e5efb0763c9"

  bottle do
    cellar :any
    sha256 "cd47308eb2e44e527b749b392bebfa17613afacd202285e95954fa00590f44d7" => :high_sierra
    sha256 "214a23363df0fe8d64260af6e86a891d3fb01452dbd2522f6c9451b21ab6e451" => :sierra
    sha256 "a1f10be5627404a571fa448e7f3f15f522348f89f642e097ba04cd0c584d2b3b" => :el_capitan
  end

  head do
    url "https://github.com/gperftools/gperftools.git"

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

  def install
    # Fix "error: unknown type name 'mach_port_t'"
    ENV["SDKROOT"] = MacOS.sdk_path if MacOS.version == :sierra

    ENV.append_to_cflags "-D_XOPEN_SOURCE"

    system "autoreconf", "-fiv" if build.head?
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}"
    system "make"
    system "make", "install"
  end

  test do
    (testpath/"test.c").write <<~EOS
      #include <assert.h>
      #include <gperftools/tcmalloc.h>

      int main()
      {
        void *p1 = tc_malloc(10);
        assert(p1 != NULL);

        tc_free(p1);

        return 0;
      }
    EOS
    system ENV.cc, "test.c", "-L#{lib}", "-ltcmalloc", "-o", "test"
    system "./test"
  end
end