google-benchmark: 0.1.0 (new formula)

Closes Homebrew/legacy-homebrew#43399.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Formula/google-benchmark.rb

@@ -0,0 +1,35 @@
+class GoogleBenchmark < Formula
+  desc "C++ microbenchmark support library"
+  homepage "https://github.com/google/benchmark"
+  url "https://github.com/google/benchmark/archive/v0.1.0.tar.gz"
+  sha256 "41aa7dca7aa94911deee078e39f7602d760f2911bb33086b5a2c8204717ddad4"
+
+  depends_on "cmake" => :build
+
+  needs :cxx11
+
+  def install
+    ENV.cxx11
+
+    system "cmake", *std_cmake_args
+    system "make"
+    system "make", "test"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.cpp").write <<-EOS.undent
+      #include <string>
+      #include <benchmark/benchmark.h>
+      static void BM_StringCreation(benchmark::State& state) {
+        while (state.KeepRunning())
+          std::string empty_string;
+      }
+      BENCHMARK(BM_StringCreation);
+      BENCHMARK_MAIN();
+    EOS
+    flags = ["-stdlib=libc++", "-I#{include}", "-L#{lib}", "-lbenchmark"] + ENV.cflags.to_s.split
+    system ENV.cxx, "-o", "test", "test.cpp", *flags
+    system "./test"
+  end
+end