Add an example using glog from Bazel

WORKSPACE

@@ -1,5 +1,7 @@
+workspace(name = "com_google_glog")
+
 git_repository(
     name = "com_github_gflags_gflags",
     remote = "https://github.com/gflags/gflags.git",
-    tag = 'v2.2.1',
+    tag = "v2.2.1",
 )

bazel/example/BUILD

@@ -0,0 +1,8 @@
+cc_test(
+    name = "main",
+    size = "small",
+    srcs = ["main.cc"],
+    deps = [
+        "@com_google_glog//:glog",
+    ],
+)

bazel/example/main.cc

@@ -0,0 +1,14 @@
+#include <gflags/gflags.h>
+#include <glog/logging.h>
+
+int main(int argc, char* argv[]) {
+  // Initialize Google's logging library.
+  google::InitGoogleLogging(argv[0]);
+
+  // Optional: parse command line flags
+  gflags::ParseCommandLineFlags(&argc, &argv, true);
+
+  LOG(INFO) << "Hello, world!";
+
+  return 0;
+}