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Arm cross compile fails on version 1.3.x - disconnect options #497

Closed ravoshsamari closed 4 months ago

ravoshsamari commented 5 months ago

Issue Description

I am encountering a compilation error with version 1.3.x of the Paho MQTT C++ library on specific ARM toolchains, while it compiles successfully on an Ubuntu machine and with an Android toolchain. Reverting to version 1.2 resolves the issue.

I am using C11, enforced in my CMake configuration. The error is as follows:


In file included from /3rdParty/paho-mqtt-cpp/src/paho_cpp_project/src/mqtt/iasync_client.h:34:0,
                 from /3rdParty/paho-mqtt-cpp/src/paho_cpp_project/src/mqtt/async_client.h:41,
                 from /3rdParty/paho-mqtt-cpp/src/paho_cpp_project/src/async_client.cpp:20:
/3rdParty/paho-mqtt-cpp/src/paho_cpp_project/src/mqtt/disconnect_options.h: In constructor 'mqtt::disconnect_options::disconnect_options(const MQTTAsync_disconnectOptions&)':
/3rdParty/paho-mqtt-cpp/src/paho_cpp_project/src/mqtt/disconnect_options.h:68:76: error: cannot convert 'const MQTTAsync_disconnectOptions' to 'char' in initialization
  disconnect_options(const MQTTAsync_disconnectOptions& copts) : opts_{copts} {}
ravoshsamari commented 4 months ago

Turns out these older toolchains have a couple things disabled with one of them being std::initializer_list which used in v1.3 and not in v1.2. properties.cpp/h disconnect_options.cpp/h use the feature now.