这里讲的很清楚：

http://github.com/drachtio/drachtio-freeswitch-modules/blob/main/modules/mod_aws_transcribe/README.md

sdk 到这里下载：

http://github.com/aws/aws-sdk-cpp

sdk 编译步骤：

cd /usr/src
git clone --recurse-submodules http://github.com/aws/aws-sdk-cpp
cd aws-sdk-cpp
mkdir build
cd build
cmake ../ -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/root/install/ -DBUILD_ONLY="s3" -DENABLE_TESTING=OFF
make
make install