Error making unionfs module

[NetSKaVeN]

Hell-o!

I'm trying to make unionfs module and module-assistant failed. Bug?

--- unionfs ---

# m-a prepare
Kernel headers available in /usr/src/linux
Done!

# m-a update
Updated infos about 67 packages

# m-a get unionfs
Updated infos about 1 packages

# m-a build unionfs
[...]
/usr/bin/make KVERS=2.6.12-9-386 LINUXSRC=/usr/src/linux 
MODPREFIX=/usr/src/modules/unionfs/debian/unionfs-modules-2.6.12-9-
386/ install-mod
make[2]: Entering directory `/usr/src/modules/unionfs'
make -C /usr/src/linux SUBDIRS=/usr/src/modules/unionfs 
FISTDEVMK=/usr/src/modules/unionfs/fistdev.mk modules
make[3]: Entering directory `/usr/src/linux-headers-2.6.12-9-386'
  CC [M]  /usr/src/modules/unionfs/subr.o
cc1: warnings being treated as errors
/usr/src/modules/unionfs/subr.c: In function 'unionfs_partial_lookup':
/usr/src/modules/unionfs/subr.c:44: warning: pointer targets in 
assignment differ in signedness
/usr/src/modules/unionfs/subr.c: In function 'create_whiteout':
/usr/src/modules/unionfs/subr.c:153: warning: pointer targets in passing 
argument 2 of 'strncat' differ in signedness
/usr/src/modules/unionfs/subr.c: In function 
'unionfs_refresh_hidden_dentry':
/usr/src/modules/unionfs/subr.c:356: warning: pointer targets in passing 
argument 1 of 'lookup_one_len' differ in signedness
make[4]: *** [/usr/src/modules/unionfs/subr.o] Error 1
make[3]: *** [_module_/usr/src/modules/unionfs] Error 2
make[3]: Leaving directory `/usr/src/linux-headers-2.6.12-9-386'
make[2]: *** [unionfs2.6] Error 2
make[2]: Leaving directory `/usr/src/modules/unionfs'
make[1]: *** [binary-modules] Error 2
make[1]: Leaving directory `/usr/src/modules/unionfs'
make: *** [kdist_build] Error 2

--- unionfs ---