build: add -std=c++03 (in non C++11 mode) and -pedantic to the default CXXFLAGS

And fix the resulting warnings. The long-long-int warning is explicitly
suppressed because it's not trivial to workaround in a platform-independent
and ISO-conformant way without using C++11.

This commit also includes fix for the advisory check for C++11-enabled
compiler in common.hpp (gcc < 4.7 does not correctly define __cpluplus
macro).

Finally, when custom CXXFLAGS are specified, --with-c++11 does not force
-std=c++11 or -std=c++0x flags, but just performs mandatory checks for
std::shared_ptr and std::function.

Change-Id: Icf44627edfddd34301bd27a05882b62fcbf54329
diff --git a/src/util/logging.cpp b/src/util/logging.cpp
index 59c7b2a..0b969a0 100644
--- a/src/util/logging.cpp
+++ b/src/util/logging.cpp
@@ -26,21 +26,21 @@
 #include <unistd.h>
 
 void
-INIT_LOGGERS ()
+INIT_LOGGERS()
 {
   static bool configured = false;
 
   if (configured) return;
 
-  if (access ("log4cxx.properties", R_OK)==0)
-    PropertyConfigurator::configureAndWatch ("log4cxx.properties");
+  if (access("log4cxx.properties", R_OK)==0)
+    PropertyConfigurator::configureAndWatch("log4cxx.properties");
   else
     {
-      PatternLayoutPtr   layout   (new PatternLayout ("%d{HH:mm:ss} %p %c{1} - %m%n"));
-      ConsoleAppenderPtr appender (new ConsoleAppender (layout));
+      PatternLayoutPtr   layout  (new PatternLayout("%d{HH:mm:ss} %p %c{1} - %m%n"));
+      ConsoleAppenderPtr appender(new ConsoleAppender(layout));
 
       BasicConfigurator::configure( appender );
-      Logger::getRootLogger()->setLevel (log4cxx::Level::getInfo ());
+      Logger::getRootLogger()->setLevel(log4cxx::Level::getInfo());
     }
 
   configured = true;