title: Cannot open include file: 'sqlite3.h': No such file or directory
body: <p>I downloaded the latest version of Cocos2dx (v3.4). I previously wrote a wrapper for Sqlite and I want to use that in my new project. But When I add the files, which are in a different directory than the project directory, I cannot include sqlite3.h in EasySqlite.h file. Compiler gives <code>C:\Users\**\Desktop\**Project\Utilities\Backend\EasySqlite.h:3: error: C1083: Cannot open include file: 'sqlite3.h': No such file or directory</code></p>
  
  <p>Here's part of my CMakeLists.txt file:</p>
  
  <pre><code>set(UTILITIES_SRC
      ../../Utilities/Backend/CommonVariables.cpp
      ../../Utilities/Backend/EasySqlite.cpp
      ../../Utilities/Backend/GameRecordManager.cpp
      ../../Utilities/Backend/ResourcesDatabaseManager.cpp
      ../../Utilities/Backend/Statistics.cpp
      ../../Utilities/Backend/StudentManager.cpp
     ../../Utilities/Backend/Toolbox.cpp
  )
  
  set(UTILITIES_HEADERS
      ../../Utilities/Backend/CommonVariables.h
      ../../Utilities/Backend/EasySqlite.h
      ../../Utilities/Backend/GameRecordManager.h
      ../../Utilities/Backend/ResourcesDatabaseManager.h
      ../../Utilities/Backend/Statistics.h
      ../../Utilities/Backend/StudentManager.h
      ../../Utilities/Backend/Toolbox.h
  )
  
  set(GAME_SRC
    Classes/AppDelegate.cpp
    Classes/TitleScreen.cpp
    Classes/SplashScreen.cpp
    Classes/Cocos2dxUtils.cpp
    ${PLATFORM_SPECIFIC_SRC}
    ${UTILITIES_SRC}
  )
  
  set(GAME_HEADERS
    Classes/AppDelegate.h
    Classes/TitleScreen.h
    Classes/SplashScreen.h
    Classes/Cocos2dxUtils.h
    ${PLATFORM_SPECIFIC_HEADERS}
    ${UTILITIES_HEADERS}
  )
  
  if(GAME_HEADERS)
      add_executable(${APP_NAME} ${GAME_SRC} ${GAME_HEADERS})
  else()
      add_executable(${APP_NAME} ${GAME_SRC})
  endif()
  </code></pre>
  
  <p>When I give the full path to the sqlite3.h file like <code>#include "C:\Users\..\..\sqlite3.h"</code> I get linker errors.</p>
  
  <pre><code>EasySqlite.cpp.obj:-1: error: LNK2019: unresolved external symbol _sqlite3_close referenced in function "public: struct std::pair&lt;struct sqlite3 *,int&gt; __thiscall EasySqlite::openDatabase(class std::basic_string&lt;char,struct std::char_traits&lt;char&gt;,class std::allocator&lt;char&gt; &gt;,bool)" (?openDatabase@EasySqlite@@QAE?AU?$pair@PAUsqlite3@@H@std@@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@3@_N@Z)
  </code></pre>
  
  <p>When I move the mentioned files above and move them to the Classes directory in the cocos2dx project, even though I ca include sqlite3.h file in, say, AppDelegate.h file I still cannot include it in EasySqlite.h</p>
  
  <p>Is'nt sqlite supposed to be linked with Cocos2dx already?</p>