rpc.nfsd is the only user of nfssvc.c, so we might as well move it
out of libnfs.a.

Also, don't link in libexport.a and libmisc.a, they aren't needed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

minorvers4 can be used to either enable or disable nfsv4.x.

If minorvers4 is a positive integer n, in the allowed range (only
minorversion 1 is supported for now), the string "+4.n" is appended
to the versions string written onto /proc/fs/nfsd/versions.

Correspondingly, if minorver4 is a negative integer -n, the string
"-4.n" is written.

With the default value, minorvers4==0, the minor version
setting is not changed.

Note that unlike the protocol versions 2, 3, or 4.  The minor version
setting controls the *maximum* minor version nfsd supports.  Particular
minor version cannot be controlled on their own.  With only minor
version 1 supported at the moment the difference doesn't matter,
but for future minor versions greater than 1, enabling minor
version X will enable support for all minor versions 1 through X.
Disabling minor version X will disable support for minor
versions X and up, enabling 1 through X-1.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Steve Dickson <steved@redhat.com>

 writting -> writing

    support/nfs/nfssvc.c:  if any ports are already open,
	   don't try to open any more.
	 This means that once nfsd is running
	     rpc.nfsd  X
	 will just change the number of threads, not the
	 ports in use.

nfssvc_versbits() has to be called before nfssvc_setfds()
for the version processing to work correctly

 -T       - will suppressing listening for TCP connection.
 -U       - will suppress UDP
 -H host  - will only listen on that local address
 -p port  - will listen on that port.

This requires kernel patches which will hopefully be in 2.6.19 and possibly some
earlier test and vendor kernels.

e.g.  -N 2
means that NFSv2 won't be supported, just v3 and v4 (if the kernel
supports them).