[OpenAFS] Start of afsd fails with "afsd: Error -1 in basic initialization."

[Karl-Philipp Richter]

Hi,
Starting `sudo /usr/local/sbin/afsd` after installing in default  
prefix on Ubuntu 15.10 with Linux 4.3.3 fails with `afsd: Error -1 in  
basic initialization.`. In `config.log` I see that `sysname` is  
`amd64_linux26` and [I  
found](https://lists.openafs.org/pipermail/openafs-info/2004-November/015432.html) that if `sysname` is wrongly detected by `configure` similar errors might occur. Can you confirm that this is the right `sysname`. In case it isn't which one would be the correct one (`configure --help` doesn't list  
possiblities).

I also detected with `stract` that `afsd` tries to open files in  
`/proc/` which don't exist.

     SScall(183, 28, 0)=-1 open("/proc/fs/openafs/afs_ioctl", O_RDWR)  
= -1 ENOENT (No such file or directory)
     open("/proc/fs/nnpfs/afs_ioctl", O_RDWR) = -1 ENOENT (No such  
file or directory)

Only `/proc/fs/afs/cells` and `/proc/fs/afs/rootcell` exist with  
similar name. There're no system packages installed and OpenAFS and  
kerberos (in case that matters) are installed from source (OpenAFS  
openafs-devel-1_5_76-4781-ged52d65) and `lsmod | grep afs` shows:

     kafs                  106496  0
     af_rxrpc              102400  3 kafs
     fscache                61440  1 kafs

Any help would be appreciated.

-Kalle