When building flrig I'm seeing the following:

widgets/font_browser.cxx: In member function '__ct_base .constprop':
widgets/font_browser.cxx:202:52: warning: argument 1 value '18446744073709551615' exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=]
  202 |                 font_pairs = new font_pair[numfonts];
      |                                                    ^

The code can be found here:

Any hints would be appreciated.

Thanks,

Richard