It is hard to understand, which PAPI is used in the project

[gogagum]

Installing the newest PAPI (7.0.1) breaks build. Error messages:

[build] <ygg-dir>/ygg/benchmark/common.hpp: In member function «void PapiMeasurements::initialize()»:
[build] <ygg-dir>/ygg/benchmark/common.hpp:187:44: error: «PAPI_num_counters» was not declared in this scope; did you mean «PAPI_num_hwctrs»?
[build]   187 |                         int num_counters = PAPI_num_counters();
[build]       |                                            ^~~~~~~~~~~~~~~~~
[build]       |                                            PAPI_num_hwctrs
[build] <ygg-dir>/ygg/benchmark/common.hpp: In member function «void PapiMeasurements::start()»:
[build] <ygg-dir>/ygg/benchmark/common.hpp:240:17: error: «PAPI_start_counters» was not declared in this scope
[build]   240 |                 PAPI_start_counters(this->selected_events.data(),
[build]       |                 ^~~~~~~~~~~~~~~~~~~
[build] <ygg-dir>/ygg/benchmark/common.hpp: In member function «void PapiMeasurements::stop()»:
[build] <ygg-dir>/ygg/benchmark/common.hpp:250:17: error: «PAPI_stop_counters» was not declared in this scope
[build]   250 |                 PAPI_stop_counters(this->event_counts.data(),
[build]       |                 ^~~~~~~~~~~~~~~~~~

These changes are caused by changes in PAPI. There is no information in README files, which exact PAPI version is used. The user has to guess the version.