pkgsrc-2013Q4 Circular dependencies

[Tim Hawes <tim%easyfreeunix.com@localhost>]

I am trying to compile pkgsrc-2013Q4 on freshly installed CentOS5 and
CentOS6.

* I did minimum installs on both machines, then install gcc, gcc-c++,
  zlib-devel, groff, and ncurses-devel packages.

* I am getting "Circular dependency detected" error on almost all (if
  not ALL) package dependencies. (See below)


==========================================================================
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20100124
=> Tool dependency xz>=4.999.9betanb1: NOT found
=> Verifying package-install for ../../archivers/xz
=> Bootstrap dependency digest>=20010302: found digest-20121220
=> Checksum SHA1 OK for xz-5.0.5.tar.bz2
=> Checksum RMD160 OK for xz-5.0.5.tar.bz2
===> Installing dependencies for xz-5.0.5
=> Tool dependency nbpatch-[0-9]*: found nbpatch-20100124
=> Tool dependency xz>=4.999.9betanb1: NOT found
=> Verifying package-install for ../../archivers/xz
ERROR: This package has set PKG_FAIL_REASON:
ERROR: Circular dependency detected
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/archivers/xz
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/archivers/xz
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/lang/python27


* When I go to build the failed dependencies directly (change directory
  to dependency package's directory and run bmake from there) it
  compiles without a hitch. (e.g., the packages listed in the above
  example were also failing, until I built them and their dependencies
  each, directly).

I have built pkgsrc-2013Q2 on both Centos 5 and Centos 6 without
problems. But I did not use minimum installs before. There must be
something wrong in my set up.

Any ideas on what and where I may look?

Thanks!

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