sigtimedwait: add time64 syscall support, decouple 32-bit time_t

[musl] / arch / x32 / bits / statfs.h

struct statfs {
        unsigned long f_type, __pad0, f_bsize, __pad1;
        fsblkcnt_t f_blocks, f_bfree, f_bavail;
        fsfilcnt_t f_files, f_ffree;
        fsid_t f_fsid;
        unsigned long f_namelen, __pad2, f_frsize, __pad3;
        unsigned long f_flags, __pad4;
        unsigned long long f_spare[4];
};