pkg/53194: pkgin frequently fails for what appears to be spurious reasons

[bruce.lilly%gmail.com@localhost]

>Number:         53194
>Category:       pkg
>Synopsis:       pkgin frequently fails for what appears to be spurious reasons
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Apr 18 18:05:00 +0000 2018
>Originator:     Bruce Lilly
>Release:        6.0-7.1
>Organization:
none
>Environment:
NetBSD z400a.blilly.net 7.1 NetBSD 7.1 (GENERIC.201703111743Z) amd64 x86_64 Intel 686-class NetBSD
>Description:
This system has been upgraded several times as new releases have been issued (possibly a factor).

An example of the problem today when trying to ugrade to gcc7:

# pkgin -y in gcc7
calculating dependencies... done.
pkgin: openvas-libraries-2.0.0nb10 has no associated repository

OK, but so what?  I didn't ask for openvas-libraries and it's not
a dependency for gcc.

Falling back to a more reliable method:

# . /etc/pkg_install.conf ; pkg_add -U gcc7
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/cpp.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/cppinternals.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/gcc.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/gccinstall.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/gccint.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/gfortran.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/libgomp.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/libitm.info
gcc7-7.2.0: registering info file /usr/pkg/gcc7/info/libquadmath.info

That works fine, using the same repositories.

>How-To-Repeat:
See Full description.
>Fix: