Compile issue in afkmud

realms.cpp: In function ‘void fread_realm(realm_data*, FILE*)’:
realms.cpp:312:8: warning: variable ‘file_ver’ set but not used [-Wunused-but-set-variable]
  312 |    int file_ver = 0;
      |        ^~~~~~~~

Aside from that though and having to install for it to find gd.h include it was good.

That's not actually unused. The compiler just doesn't understand the way KEY calls work. The file_ver is set there, which obviously uses that variable.