build: update default CXXFLAGS.

* Add -std=c++03 and -pedantic, 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.

* Initial support for building with -std=c++11 (experimental).

* Prefer -Og optimization level in debug builds if supported by the
  compiler.

Change-Id: I744a25c8b52842dc3ea3a733d6ab2fa66171e6f8
diff --git a/tests/mgmt/validation-common.cpp b/tests/mgmt/validation-common.cpp
index 2e4cce9..6065c27 100644
--- a/tests/mgmt/validation-common.cpp
+++ b/tests/mgmt/validation-common.cpp
@@ -44,7 +44,7 @@
   m_keys.deleteIdentity(s_identityName);
 }
 
-BOOST_GLOBAL_FIXTURE(CommandIdentityGlobalFixture);
+BOOST_GLOBAL_FIXTURE(CommandIdentityGlobalFixture)
 
 } // namespace tests
 } // namespace nfd