/in/hotel-main.c: In function 'p':
/in/hotel-main.c:104:9: error: variable 'done' set but not used [-Werror=unused-but-set-variable]
     int done;
         ^~~~
/in/hotel-main.c: In function 'fp':
/in/hotel-main.c:113:9: error: variable 'done' set but not used [-Werror=unused-but-set-variable]
     int done;
         ^~~~
cc1: all warnings being treated as errors