https://docs.aws.amazon.com/sdk-for-cpp/latest/api/aws-cpp-sdk-core/html/_c_r_t_log_system_8h_source.html
AWS SDK for C++: src/aws-cpp-sdk-core/include/aws/core/utils/logging/CRTLogSystem.h Source File
src/aws-cpp-sdk-core/include/aws/core/utils/logging/CRTLogSystem.h Source File - AWS SDK for C++ v1