Add target main and build

src/main.cc

@@ -0,0 +1,70 @@
+// #define GOOGLE_STRIP_LOG 1
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+#define GLOG_NO_ABBREVIATED_SEVERITIES
+#endif
+#include <glog/logging.h>
+
+#ifdef HAVE_LIB_GFLAGS
+#include <gflags/gflags.h>
+#endif
+
+#include "mynteye/mynteye.h"
+
+int main(int /*argc*/, char *argv[]) {
+  // Set whether log messages go to stderr instead of logfiles
+  // FLAGS_logtostderr = true;
+  // Set whether log messages go to stderr in addition to logfiles.
+  FLAGS_alsologtostderr = true;
+  // Set color messages logged to stderr (if supported by terminal).
+  FLAGS_colorlogtostderr = true;
+
+  // If specified, logfiles are written into this directory instead of the
+  // default logging directory.
+  FLAGS_log_dir = ".";
+  // Sets the maximum log file size (in MB).
+  FLAGS_max_log_size = 1024;
+  // Sets whether to avoid logging to the disk if the disk is full.
+  FLAGS_stop_logging_if_full_disk = true;
+
+  // Show all VLOG(m) messages for m <= this.
+  FLAGS_v = 2;
+
+  // Initialize google's logging library.
+  google::InitGoogleLogging(argv[0]);
+#ifdef HAVE_LIB_GFLAGS
+  // Optional: parse command line flags
+  gflags::ParseCommandLineFlags(&argc, &argv, true);
+#endif
+
+  if (VLOG_IS_ON(2)) {
+    VLOG(2) << "do some logging preparation and logging";
+  }
+
+  VLOG(2) << "verbose msg";
+  VLOG(1) << "debug msg";
+  LOG(INFO) << "info msg";
+  LOG(WARNING) << "warning msg";
+  LOG(ERROR) << "error msg";
+  // LOG(FATAL) << "fatal msg";
+
+  LOG(INFO) << "MYNTEYE API version is " << MYNTEYE_API_VERSION_STR;
+  if (MYNTEYE_API_VERSION >= MYNTEYE_API_VERSION_CHECK(2, 0, 0)) {
+    LOG(INFO) << "MYNTEYE API version is greater than or equal to 2.0.0";
+  } else {
+    LOG(INFO) << "MYNTEYE API version is less than 2.0.0";
+  }
+
+  // Shutdown google's logging library.
+  google::ShutdownGoogleLogging();
+  return 0;
+}
+
+// miniglog: https://github.com/tzutalin/miniglog
+/*
+ANDROID_LOG_FATAL,    // LOG(FATAL)
+ANDROID_LOG_ERROR,    // LOG(ERROR)
+ANDROID_LOG_WARN,     // LOG(WARNING)
+ANDROID_LOG_INFO,     // LOG(INFO), LG, VLOG(0)
+ANDROID_LOG_DEBUG,    // VLOG(1)
+ANDROID_LOG_VERBOSE,  // VLOG(2) .. VLOG(N)
+*/