The following are the errors I got with option V=s
mksquashfs.c: In function 'create_inode':
mksquashfs.c:1372:24: error: called object 'major' is not a function or function pointer
1372 | unsigned int major = major(buf->st_rdev);
| ^~~~~
mksquashfs.c:1372:16: note: declared here
1372 | unsigned int major = major(buf->st_rdev);
| ^~~~~
mksquashfs.c:1373:24: error: called object 'minor' is not a function or function pointer
1373 | unsigned int minor = minor(buf->st_rdev);
| ^~~~~
mksquashfs.c:1373:16: note: declared here
1373 | unsigned int minor = minor(buf->st_rdev);
| ^~~~~
mksquashfs.c:1396:24: error: called object 'major' is not a function or function pointer
1396 | unsigned int major = major(buf->st_rdev);
| ^~~~~
mksquashfs.c:1396:16: note: declared here
1396 | unsigned int major = major(buf->st_rdev);
| ^~~~~
mksquashfs.c:1397:24: error: called object 'minor' is not a function or function pointer
1397 | unsigned int minor = minor(buf->st_rdev);
| ^~~~~
mksquashfs.c:1397:16: note: declared here
1397 | unsigned int minor = minor(buf->st_rdev);
| ^~~~~