error: unused variable ‘queue’ [-Werror=unused-variable]

[capital-hub]

/myproject/external/loki-mq/oxenmq/jobs.cpp:143:28: error: unused variable ‘queue’ [-Werror=unused-variable]
auto& [run, busy, queue] = tagged_workers.emplace_back();

here i attached the screenshot of the code

the blue line marked in the code

This error accuried while i run the Makefile in the project , How i fix this

[jagerman]

This is a quasi-bug in gcc-8 (IIRC) that doesn't properly silence the warning when any of those variables are used. gcc-9 and clang handle it properly.

You can work around it by remove -Werror from CMakeLists.txt; really we should make -Werror a configurable build option.