samba4 tdb dependency fails to build on NetBSD 8.0-STABLE

[Mike Pumford <mpumford%mudcovered.org.uk@localhost>]

I'm getting the following errors trying to build samba4:

PYTHONHASHSEED=1 WAF_MAKE=1 /usr/pkg/bin/python2.7 
/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/buildtools/bin/waf 
build
Traceback (most recent call last):
  File 
"/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/third_party/waf/waflib/Scripting.py", 
line 158, in waf_entry_point
    run_commands()
  File 
"/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/third_party/waf/waflib/Scripting.py", 
line 247, in run_commands
    parse_options()
  File 
"/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/third_party/waf/waflib/Scripting.py", 
line 216, in parse_options
    ctx.execute()
  File 
"/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/third_party/waf/waflib/Options.py", 
line 340, in execute
    self.parse_args()
  File 
"/pkg_comp/obj/pkgsrc/databases/tdb/default/tdb-1.3.17/third_party/waf/waflib/Options.py", 
line 331, in parse_args
    options, commands, envvars = self.parse_cmd_args()
  File "./buildtools/wafsamba/samba_utils.py", line 500, in 
wafsamba_options_parse_cmd_args
    CHECK_MAKEFLAGS(options)
  File "./buildtools/wafsamba/samba_utils.py", line 491, in CHECK_MAKEFLAGS
    options.jobs = int(jobs)^M
ValueError: invalid literal for int() with base 10: 
'_PATH_ORIG=/usr/pkg/java/openjdk8/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/X11R7/bin:/usr/X11R6/bin:/usr/pkg/bin:/usr/pkg/sbin:/usr/local/bin'^M
gmake: *** [Makefile:7: all] Error 2^M

Not quite sure how this is happening unless its getting confused by the 
--jobs={MAKE_JOBS} passed into configure. I did try getting rid of that 
from the package makefile but it made no difference.

Any suggestions?

Mike