have a problem with pkgsrc in 6.4.0

i have a fresh installation of qnx 6.4.0.
i downloaded svn pkgsrc HEAD640 repository via svn.
then i ran ./bootstrapand all tools seems was built.
after that i decided do simple test as describedon foundry site:
bash-2.05a# pwd
/root/HEAD_640/pkgsrc/misc/figlet
bash-2.05a# bmake install
=> Bootstrap dependency digest>=20010302: NOT found
=> Verifying reinstall for …/…/pkgtools/digest
===> Checking for vulnerabilities in digest-20080510
===> Installing dependencies for digest-20080510
=> Build dependency gcc>=2.95.3nb7: NOT found
=> Verifying reinstall for …/…/lang/gcc
=> Bootstrap dependency digest>=20010302: NOT found
=> Verifying reinstall for …/…/pkgtools/digest
ERROR: This package has set PKG_FAIL_REASON:
ERROR: Circular dependency detected
*** Error code 1

Stop.
bmake: stopped in /root/HEAD_640/pkgsrc/pkgtools/digest
*** Error code 1

Stop.
bmake: stopped in /root/HEAD_640/pkgsrc/lang/gcc
*** Error code 1

Stop.
bmake: stopped in /root/HEAD_640/pkgsrc/pkgtools/digest
*** Error code 1

Stop.
bmake: stopped in /root/HEAD_640/pkgsrc/misc/figlet

What’s wrong with it?

P.S compiler is gcc 4.2.4 - standard for 6.4.0 release.
from additional packages installed:
bash2.5, mc, workspace.