curl报错

Cocos2d-x
#1

用3.17android studio 编译报错

G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:91: error: undefined reference to ‘curl_easy_init’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:100: error: undefined reference to ‘curl_easy_setopt’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:101: error: undefined reference to ‘curl_easy_setopt’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:102: error: undefined reference to ‘curl_easy_setopt’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:103: error: undefined reference to ‘curl_easy_setopt’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:113: error: undefined reference to ‘curl_easy_perform’
G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/jni/…/…/…/Classes/DL/DownloadHu.cpp:114: error: undefined reference to ‘curl_easy_cleanup’
clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [G:/GameLua/CocosLua/frameworks/runtime-src/proj.android/app/build/intermediates/ndkBuild/debug/obj/local/armeabi-v7a/libcocos2dlua.so] Error 1

求教

#2

LOCAL_LDLIBS := (LOCAL_PATH)/../../../../cocos2d-x/external/curl/prebuilt/android/(TARGET_ARCH_ABI)/libcurl.a
LOCAL_LDLIBS += (LOCAL_PATH)/../../../../cocos2d-x/external/openssl/prebuilt/android/(TARGET_ARCH_ABI)/libssl.a
LOCAL_LDLIBS += (LOCAL_PATH)/../../../../cocos2d-x/external/openssl/prebuilt/android/(TARGET_ARCH_ABI)/libcrypto.a
手动加了一下这个，好像就可以了，如果找不到curl.h $(LOCAL_PATH)/…/…/…/…/cocos2d-x/external/curl/include/android 加一句这个

#3

android为啥会用到curl？

#4

请问这个放在哪里？