anchor.diff:    OCFS2_DEBUG_MASKLOG? n
     BTRFS_FS_POSIX_ACL y
     UBIFS_FS_ADVANCED_COMPR? y
  +  F2FS_FS m
  +  F2FS_FS_SECURITY? y
  +  F2FS_FS_ENCRYPTION? y
  +  UDF_FS m
     ${optionalString (versionAtLeast version "4.0" && versionOlder version "4.6") ''
       NFSD_PNFS y
     ''}
  
positive.code:   EXT3_FS_POSIX_ACL y
    EXT3_FS_SECURITY y
    EXT4_FS_POSIX_ACL y
    EXT4_FS_SECURITY y
    REISERFS_FS_XATTR? y
    REISERFS_FS_POSIX_ACL? y
  
negative.code:   # ACLs for all filesystems that support them.
    FANOTIFY y
    TMPFS y
    FS_ENCRYPTION? m
    EXT2_FS_XATTR y
    EXT2_FS_POSIX_ACL y
    EXT2_FS_SECURITY y
  