cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations sys_statvfs/struct-statvfs-f_fsid.c -o sys_statvfs/struct-statvfs-f_fsid -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lcrypt -latomic
sys_statvfs/struct-statvfs-f_fsid.c: In function ‘foo’:
sys_statvfs/struct-statvfs-f_fsid.c:4:30: error: initialization of ‘long unsigned int *’ from incompatible pointer type ‘__fsid_t *’ {aka ‘long long unsigned int *’} [-Werror=incompatible-pointer-types]
    4 |         unsigned long *qux = &bar->f_fsid;
      |                              ^
cc1: all warnings being treated as errors