Bug#980475: libnet-traceroute-perl FTBFS on IPV6-only buildds

[Adrian Bunk]

Source: libnet-traceroute-perl
Version: 1.15-1
Severity: serious
Tags: ftbfs

https://buildd.debian.org/status/fetch.php?pkg=libnet-traceroute-perl&arch=all&ver=1.15-1.1&stamp=1610929613&raw=0

...
not ok 9 - Hop 4 has 3 queries # TODO Unknowns aren't quite right yet
#   Failed (TODO) test 'Hop 4 has 3 queries'
#   at t/44-parse-cisco-4unknown.t line 26.
#          got: '2'
#     expected: '3'
not ok 10 - Hop 4, query 2 host is not defined # TODO Unknowns aren't quite right yet
#   Failed (TODO) test 'Hop 4, query 2 host is not defined'
#   at t/44-parse-cisco-4unknown.t line 27.
not ok 11 - Hop 4, query 2 status is TRACEROUTE_UNKNOWN # TODO Unknowns aren't quite right yet
#   Failed (TODO) test 'Hop 4, query 2 status is TRACEROUTE_UNKNOWN'
#   at t/44-parse-cisco-4unknown.t line 29.
#          got: '0'
#     expected: '2'
...
Test Summary Report
-------------------
t/95-sys-traceroute.t       (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 2 tests but ran 0.
Files=22, Tests=187,  4 wallclock secs ( 0.10 usr  0.03 sys +  2.18 cusr  0.39 csys =  2.70 CPU)
Result: FAIL
Failed 1/22 test programs. 0/187 subtests failed.
make[2]: *** [Makefile:819: test_dynamic] Error 255



This is likely related to #849933.