in file samba-master/selftest/target/Samba4.pm
we have printing = vlp in line 1374

with this setting i get :

WARNING: Ignoring invalid value 'vlp' for parameter 'printing'
WARNING: Ignoring invalid value 'vlp' for parameter 'printing'
initialize_winbindd_cache: clearing cache and re-creating with version number 2
[1/310 in 0s] samba3.base.attr(s3dc)
Unknown enumerated value 'vlp' for 'printing'
ERROR(runtime): uncaught exception - Unable to load file /usr/src/samba-master/st/plugin_s4_dc/etc/smb.conf
  File "bin/python/samba/netcmd/__init__.py", line 160, in _run
    return self.run(*args, **kwargs)
  File "bin/python/samba/netcmd/testparm.py", line 91, in run
    lp = sambaopts.get_loadparm()
  File "bin/python/samba/getopt.py", line 88, in get_loadparm
    self._lp.load(self._configfile)
Failed to create a valid smb.conf configuration ./bin/samba-tool testparm! at /usr/src/samba-master/selftest/target/Samba4.pm line 645.
failed to start up environment 'plugin_s4_dc' at /usr/src/samba-master/selftest/target/Samba.pm line 48.
samba can't start up known environment 'plugin_s4_dc' at /usr/src/samba-master/selftest/selftest.pl line 756.
no output for name[samba3.base.attr(plugin_s4_dc)]
[2/310 in 19s, 1 errors] samba3.base.chkpath(s3dc)
Unknown enumerated value 'vlp' for 'printing'
ERROR(runtime): uncaught exception - Unable to load file /usr/src/samba-master/st/plugin_s4_dc/etc/smb.conf
  File "bin/python/samba/netcmd/__init__.py", line 160, in _run
    return self.run(*args, **kwargs)
  File "bin/python/samba/netcmd/testparm.py", line 91, in run
    lp = sambaopts.get_loadparm()
  File "bin/python/samba/getopt.py", line 88, in get_loadparm
    self._lp.load(self._configfile)
Failed to create a valid smb.conf configuration ./bin/samba-tool testparm! at /usr/src/samba-master/selftest/target/Samba4.pm line 645.
failed to start up environment 'plugin_s4_dc' at /usr/src/samba-master/selftest/target/Samba.pm line 48.
samba can't start up known environment 'plugin_s4_dc' at /usr/src/samba-master/selftest/selftest.pl line 756.
no output for name[samba3.base.chkpath(plugin_s4_dc)]


and so on ....
Just commenting the line out results in make quicktest and ALL ok :)
Greets ttv