AWS SDK C++：不能运行 S3 示例

Question

我们正在尝试使用 setup and thread

在 EC2 服务器上构建适用于 C++ 的 AWS SDK（仅 s3 模块）

它编译得很好，包括带有测试的 s3

接下来，我尝试编译 example

但是，CMake 正在抛出错误（如错误消息所示，文件 /usr/local/lib/aws-c-event-stream/cmake/static/aws-c-event-stream-targets.cmake 不存在）。我该如何解决？

ubuntu@ip:~/awslog$ mkdir sdk_example_builds
ubuntu@ip:~/awslog$ cd sdk_example_builds/
ubuntu@ip:~/awslog/sdk_example_builds$ mkdir s3 && cd s3
ubuntu@ip:~/awslog/sdk_example_builds/s3$ sudo cmake /home/ubuntu/awslog/aws-doc-sdk-examples/cpp/example_code/s3


-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Found Threads: TRUE  
CMake Error at /usr/local/lib/aws-c-common/cmake/aws-c-common-config.cmake:7 (include):
  include could not find load file:

    /usr/local/lib/aws-c-common/cmake/static/aws-c-common-targets.cmake
Call Stack (most recent call first):
  /usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake:48 (find_package)
  /usr/local/lib/aws-c-event-stream/cmake/aws-c-event-stream-config.cmake:2 (find_dependency)
  /usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake:48 (find_package)
  /usr/local/lib/cmake/aws-cpp-sdk-core/aws-cpp-sdk-core-config.cmake:2 (find_dependency)
  /usr/local/lib/cmake/AWSSDK/AWSSDKConfig.cmake:292 (find_package)
  CMakeLists.txt:15 (find_package)


CMake Error at /usr/local/lib/aws-checksums/cmake/aws-checksums-config.cmake:4 (include):
  include could not find load file:

    /usr/local/lib/aws-checksums/cmake/static/aws-checksums-targets.cmake
Call Stack (most recent call first):
  /usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake:48 (find_package)
  /usr/local/lib/aws-c-event-stream/cmake/aws-c-event-stream-config.cmake:3 (find_dependency)
  /usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake:48 (find_package)
  /usr/local/lib/cmake/aws-cpp-sdk-core/aws-cpp-sdk-core-config.cmake:2 (find_dependency)
  /usr/local/lib/cmake/AWSSDK/AWSSDKConfig.cmake:292 (find_package)
  CMakeLists.txt:15 (find_package)


CMake Error at /usr/local/lib/aws-c-event-stream/cmake/aws-c-event-stream-config.cmake:8 (include):
  include could not find load file:

    /usr/local/lib/aws-c-event-stream/cmake/static/aws-c-event-stream-targets.cmake
Call Stack (most recent call first):
  /usr/share/cmake-3.10/Modules/CMakeFindDependencyMacro.cmake:48 (find_package)
  /usr/local/lib/cmake/aws-cpp-sdk-core/aws-cpp-sdk-core-config.cmake:2 (find_dependency)
  /usr/local/lib/cmake/AWSSDK/AWSSDKConfig.cmake:292 (find_package)
  CMakeLists.txt:15 (find_package)


-- Found aws-cpp-sdk-core
-- Try finding aws-cpp-sdk-s3
-- Found aws-cpp-sdk-s3
-- Configuring incomplete, errors occurred!
See also "/home/ubuntu/awslog/sdk_example_builds/s3/CMakeFiles/CMakeOutput.log".
See also "/home/ubuntu/awslog/sdk_example_builds/s3/CMakeFiles/CMakeError.log".

Answer 1

从您的日志中可以清楚地看出错误与 cmake 类型的库有关。

在你的例子中，cmake 被默认调用为静态库；你可以通过检查它正在寻找的路径看到：

/usr/local/lib/aws-c-common/cmake/static/aws-c-common-targets.cmake

为了能够编译您的示例，只需运行 CMake 通过共享库告诉它 link 如下：

sudo cmake /home/ubuntu/awslog/aws-doc-sdk-examples/cpp/example_code/s3 -DBUILD_SHARED_LIBS=ON

然后

cd /home/ubuntu/awslog/aws-doc-sdk-examples/cpp/example_code/s3
sudo make

大功告成！

P.S.: 不清楚为什么 AWS SDK 库不包含静态 cmake 文件（可能您的配置中缺少某些内容）。但是，通过这种方式，您可以使用 SDK 的共享库版本，并且您将能够以相同的方式工作。

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