cocos2d-x extentions 中添加 jsoncpp

把 jsoncpp 的源码(.h .cpp)拷贝到 extentions/jsoncpp 目录下；

vs 在extentions项目中添加现有项，extentions 项目属性 c++ 常规中添加该目录到包含路径即可。

android 需要在 cocos2d-2.0-x-2.0.4\extensions\Android.mk 中把需要编译的 cpp 文件添加到依赖文件中，
并且把包含路径添加到 LOCAL_EXPORT_C_INCLUDES

LOCAL_SRC_FILES := CCBReader/CCBFileLoader.cpp
CCBReader/CCBReader.cpp
CCBReader/CCControlButtonLoader.cpp
CCBReader/CCControlLoader.cpp
CCBReader/CCLabelBMFontLoader.cpp
CCBReader/CCLabelTTFLoader.cpp
CCBReader/CCLayerColorLoader.cpp
CCBReader/CCLayerGradientLoader.cpp
CCBReader/CCLayerLoader.cpp
CCBReader/CCMenuItemImageLoader.cpp
CCBReader/CCMenuItemLoader.cpp
CCBReader/CCNodeLoader.cpp
CCBReader/CCNodeLoaderLibrary.cpp
CCBReader/CCParticleSystemQuadLoader.cpp
CCBReader/CCScale9SpriteLoader.cpp
CCBReader/CCScrollViewLoader.cpp
CCBReader/CCSpriteLoader.cpp
CCBReader/CCBAnimationManager.cpp
CCBReader/CCBKeyframe.cpp
CCBReader/CCBSequence.cpp
CCBReader/CCBSequenceProperty.cpp
CCBReader/CCBValue.cpp
CCBReader/CCData.cpp
CCBReader/CCNode+CCBRelativePositioning.cpp
GUI/CCControlExtension/CCControl.cpp
GUI/CCControlExtension/CCControlButton.cpp
GUI/CCControlExtension/CCControlColourPicker.cpp
GUI/CCControlExtension/CCControlHuePicker.cpp
GUI/CCControlExtension/CCControlSaturationBrightnessPicker.cpp
GUI/CCControlExtension/CCControlSlider.cpp
GUI/CCControlExtension/CCControlSwitch.cpp
GUI/CCControlExtension/CCControlUtils.cpp
GUI/CCControlExtension/CCInvocation.cpp
GUI/CCControlExtension/CCScale9Sprite.cpp
GUI/CCControlExtension/CCControlPotentiometer.cpp
GUI/CCControlExtension/CCControlStepper.cpp
GUI/CCScrollView/CCScrollView.cpp
GUI/CCScrollView/CCTableView.cpp
GUI/CCScrollView/CCTableViewCell.cpp
GUI/CCScrollView/CCSorting.cpp
GUI/CCEditBox/CCEditBox.cpp
GUI/CCEditBox/CCEditBoxImplAndroid.cpp
network/HttpClient.cpp
jsoncpp/json_reader.cpp
jsoncpp/json_value.cpp
jsoncpp/json_writer.cpp

LOCAL_WHOLE_STATIC_LIBRARIES := cocos2dx_static
LOCAL_WHOLE_STATIC_LIBRARIES += cocos_curl_static

LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)
                           $(LOCAL_PATH)/CCBReader
                           $(LOCAL_PATH)/GUI/CCControlExtension
                           $(LOCAL_PATH)/GUI/CCScrollView
                           $(LOCAL_PATH)/network
                           $(LOCAL_PATH)/jsoncpp

想在cocos2d-x中添加其他外部库源码类似