Build of openafs-modules 1.6.0-1~bpo60 failed on kernel 3.2.0-0.bpo.1-amd64_3.2.1-2~bpo60+1_amd64

[Mario Winkler <winkler.mario@arcor.de>]

....
CC [M] 
/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP/osi_vcache.o
CC [M] 
/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP/osi_vfsops.o
/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP/osi_vfsops.c: 
In function ‘vattr2inode’:
/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP/osi_vfsops.c:442: 
error: assignment of read-only member ‘i_nlink’
make[6]: *** 
[/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP/osi_vfsops.o] 
Fehler 1
make[5]: *** 
[_module_/var/lib/dkms/openafs/1.6.0/build/src/libafs/MODLOAD-3.2.0-0.bpo.1-amd64-SP] 
Fehler 2
make[4]: *** [sub-make] Fehler 2