Bug#980481: libxml-stream-perl FTBFS on IPV6-only buildds

[Adrian Bunk]

Source: libxml-stream-perl
Version: 1.24-3
Severity: serious
Tags: ftbfs

https://buildd.debian.org/status/fetch.php?pkg=libxml-stream-perl&arch=all&ver=1.24-3.1&stamp=1610929660&raw=0

...
Cannot resolve x86-conova-01:  at /<<PKGBUILDDIR>>/blib/lib/XML/Stream.pm line 208.
# Looks like your test exited with 255 before it could output anything.
t/net_xmpp.t ...... 
1..3
Dubious, test returned 255 (wstat 65280, 0xff00)
Failed 3/3 subtests 
Cannot resolve x86-conova-01:  at /<<PKGBUILDDIR>>/blib/lib/XML/Stream.pm line 208.
# Looks like your test exited with 255 before it could output anything.
t/parse_node.t .... 
1..6
Dubious, test returned 255 (wstat 65280, 0xff00)
Failed 6/6 subtests 
Cannot resolve x86-conova-01:  at /<<PKGBUILDDIR>>/blib/lib/XML/Stream.pm line 208.
# Looks like your test exited with 255 before it could output anything.
t/parse_tree.t .... 
1..4
Dubious, test returned 255 (wstat 65280, 0xff00)
Failed 4/4 subtests 
...
Test Summary Report
-------------------
t/buildxml.t    (Wstat: 65280 Tests: 1 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 56 tests but ran 1.
t/net_xmpp.t    (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 3 tests but ran 0.
t/parse_node.t  (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 6 tests but ran 0.
t/parse_tree.t  (Wstat: 65280 Tests: 0 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 4 tests but ran 0.
t/tcpip.t       (Wstat: 65280 Tests: 1 Failed: 0)
  Non-zero exit status: 255
  Parse errors: Bad plan.  You planned 4 tests but ran 1.
Files=13, Tests=134,  2 wallclock secs ( 0.06 usr  0.03 sys +  1.77 cusr  0.29 csys =  2.15 CPU)
Result: FAIL
Failed 5/13 test programs. 0/134 subtests failed.
dh_auto_test: error: perl Build test --verbose 1 returned exit code 255
make[1]: *** [debian/rules:6: override_dh_auto_test] Error 25


This might be related to #692311.