problem bootstrapping pkgsrc on FreeBSD 11

[udon%sdf-eu.org@localhost]

Hello all, 

I'm trying to use pkgsrc on FreeBSD 11. 
Bootstrapping fails with the following error:

===> Installing dependencies for cwrappers-20170112
=> Build dependency gcc3-c>=3.3.5nb1: NOT found
=> Verifying reinstall for ../../lang/gcc3-c
=> Bootstrap dependency digest>=20010302: NOT found
=> Verifying reinstall for ../../pkgtools/digest
===> Installing dependencies for digest-20160304
=> Build dependency cwrappers>=20150314: NOT found
=> Verifying reinstall for ../../pkgtools/cwrappers
ERROR: This package has set PKG_FAIL_REASON:
ERROR: Circular dependency detected
*** Error code 1

Stop.
bmake[3]: stopped in /usr/pkgsrc/pkgtools/cwrappers
*** Error code 1

Stop.
bmake[2]: stopped in /usr/pkgsrc/pkgtools/digest
*** Error code 1

Stop.
bmake[1]: stopped in /usr/pkgsrc/lang/gcc3-c
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/pkgtools/cwrappers
===> exited with status 1
aborted.

I'm not sure how this circular dependency can be solved...
Anyone tried using pkgsrc on FreeBSD? Any ideas?
Thanks.