[cpp] Fix root project build and dependencies.

cpp/datastructs/doublelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a doubly linked list implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-doubly-linked-list driver.cpp

cpp/datastructs/doublelist/doublelist.cpp

@@ -10,6 +10,7 @@
 
 #include "doublelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators