I have a confirmed underlinking error in Samba 4.0 Alpha 16.

[2952/3272] Linking default/source3/modules/libvfs-linux-xfs-sgid.so
default/source3/modules/vfs_linux_xfs_sgid_58.o: In function `linux_xfs_sgid_mkdir':
vfs_linux_xfs_sgid.c:(.text+0xa3): undefined reference to `smb_vfs_call_mkdir'
vfs_linux_xfs_sgid.c:(.text+0xbf): undefined reference to `parent_dirname'
vfs_linux_xfs_sgid.c:(.text+0x17f): undefined reference to `smb_vfs_call_stat'
vfs_linux_xfs_sgid.c:(.text+0x253): undefined reference to `smb_vfs_call_stat'
vfs_linux_xfs_sgid.c:(.text+0x2bf): undefined reference to `become_root'
vfs_linux_xfs_sgid.c:(.text+0x2ce): undefined reference to `smb_vfs_call_chmod'
vfs_linux_xfs_sgid.c:(.text+0x2d5): undefined reference to `unbecome_root'
default/source3/modules/vfs_linux_xfs_sgid_58.o: In function `init_samba_module':
vfs_linux_xfs_sgid.c:(.text+0x3d8): undefined reference to `smb_register_vfs'
collect2: ld returned 1 exit status
Waf: Leaving directory `/home/ryushu/svn/samba4/BUILD/samba-4.0.0alpha16/bin'
Build failed:  -> task failed (err #1): 
        {task: cc_link vfs_linux_xfs_sgid_58.o -> libvfs-linux-xfs-sgid.so}
make: *** [all] Error 1

I run Mandriva 2010.2, I think this has been fixed in GIT, but I'd like to get a patch I can apply to Alpha 16 directly, and see what else happens.