Now able to build cmake --build . --target aws-iot-device-client

[sausinx]

While executing cmake --build . --target aws-iot-device-client

[ 97%] Building CXX object CMakeFiles/aws-iot-device-client.dir/source/jobs/JobEngine.cpp.o
/home/ubuntu/aws-iot-device-client/source/jobs/JobEngine.cpp: In member function ‘virtual void Aws::Iot::DeviceClient::Jobs::JobEngine::processCmdOutput(int, bool, int)’:
/home/ubuntu/aws-iot-device-client/source/jobs/JobEngine.cpp:29:39: error: ignoring attributes on template argument ‘int ()(FILE)’ [-Werror=ignored-attribute]
29 | unique_ptr<FILE, decltype(&fclose)> pipe(fdopen(fd, "r"), &fclose);
| ^
cc1plus: all warnings being treated as errors
gmake[3]: *** [CMakeFiles/aws-iot-device-client.dir/build.make:384: CMakeFiles/aws-iot-device-client.dir/source/jobs/JobEngine.cpp.o] Error 1
gmake[2]: *** [CMakeFiles/Makefile2:696: CMakeFiles/aws-iot-device-client.dir/all] Error 2
gmake[1]: *** [CMakeFiles/Makefile2:703: CMakeFiles/aws-iot-device-client.dir/rule] Error 2
gmake: *** [Makefile:169: aws-iot-device-client] Error 2

Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble

[ig15]

Hi @sausinx . The issue seems to be that the compiler is ignoring the attributes on the template argument int ()(FILE), which is the type of the fclose function. This is likely due to a bug or limitation in the compiler.
To resolve this issue, you can disable the specific warning that is causing the error. Do the following:

• 
In your CMakeLists.txt file, add the following line to disable the warning:

  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-ignored-attributes")

[ig15]

Closing the issue for now. Feel free to reopen it in case you face further difficulties.