/in/hotel-ll.c: In function 'LoadInfo_Dorm':
/in/hotel-ll.c:91:8: error: implicit declaration of function 'getline' [-Werror=implicit-function-declaration]
 read = getline(&line, &len, fp);
        ^~~~~~~
/in/hotel-ll.c:82:5: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
 int read = 0;
     ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Family':
/in/hotel-ll.c:156:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read = 0;
      ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Couple':
/in/hotel-ll.c:221:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read = 0;
      ^~~~
/in/hotel-ll.c: In function 'LoadInfo_Single':
/in/hotel-ll.c:280:6: error: variable 'read' set but not used [-Werror=unused-but-set-variable]
  int read;
      ^~~~
cc1: all warnings being treated as errors