如何在dropbox djinni项目中链接libcurl

Question

我需要libcurl在dropbox djinni mx3项目中做一些事情；但是当我创建libmx3_android.so时，会显示这个错误消息：“未定义的对‘curl_easy_init’的引用”......因为我不能将libcurl.a链接到这个项目。

对于android jni，我找到一些解决方案，那就是eidt Android.mk。

include $(CLEAR_VARS)
LOCAL_MODULE:= libcurl
LOCAL_SRC_FILES := libcurl.a
LOCAL_EXPORT_C_INCLUDES := /* put the path to the Curl headers here */
include $(PREBUILT_STATIC_LIBRARY)

但在这些项目中，.mk文件将由mx3.gyp重新创建。如何编辑mx3.gyp来创建.mk文件？

谢谢。

Answer 1

首先，您需要为所有平台编译.a文件。你可以在这里找到它，https://github.com/gcesarmza/curl-android-ios或者自己编译。然后，您还需要添加为依赖项

"targets": [
    {
        "target_name": "libapplication_jni",
        "type": "shared_library",
        "dependencies": [
          "../support-lib/support_lib.gyp:djinni_jni",
        ],
        "libraries": ["libcurl.a",],
        "ldflags": [ "-llog", "-lz", "-Wl,--build-id,--gc-sections,--exclude-libs,ALL" ],
        "sources": [
          "../support-lib/jni/djinni_main.cpp",
          "<!@(python glob.py generated-src/jni   '*.cpp')",
          "<!@(python glob.py handwritten-src/cpp '*.cpp')",
        ],
        "include_dirs": [
          "../deps/include",
          "generated-src/jni",
          "generated-src/cpp",
          "handwritten-src/jni",
          "handwritten-src/cpp",
        ],
    },
],

最后，将curl包含文件放在deps/include目录中，将此文件放在Android.mk文件的开头

LOCAL_PATH:= $(call my-dir)

#ARM optimizations
ifeq ($(TARGET_ARCH),arm)
  PLATFORM_TARGET_ARCH := armeabi
endif
ifeq ($(TARGET_ARCH),arm64)
  PLATFORM_TARGET_ARCH := arm64-v8a
endif

#x86 optimizations
ifeq ($(TARGET_ARCH),x86)
  PLATFORM_TARGET_ARCH := x86
endif
ifeq ($(TARGET_ARCH),x86_64)
  PLATFORM_TARGET_ARCH := x86_64
endif

#MIPS optimizations
ifeq ($(TARGET_ARCH),mips)
  PLATFORM_TARGET_ARCH := mips
endif
ifeq ($(TARGET_ARCH),mips64)
  PLATFORM_TARGET_ARCH := mips64
endif

include $(CLEAR_VARS)
LOCAL_MODULE:= libcurl
LOCAL_SRC_FILES := /djinni/mobile/deps/prebuilt/android/$(PLATFORM_TARGET_ARCH)/libcurl.a
LOCAL_EXPORT_C_INCLUDES := /djinni/mobile/deps/include
include $(PREBUILT_STATIC_LIBRARY)

我希望它能帮上忙。谢谢

Answer 2

‘LOCAL_PATH’：'-L$(LOCAL_PATH)/deps/curl'，‘-L$(Llog)/deps/zlib’，'-llog‘，'-lcurl'，'-lz'，