Bug#962218: gnutls28: build fails on IPv6-only buildds

[Andreas Metzler]

On 2020-06-04 Adrian Bunk <bunk at debian.org> wrote:
> Source: gnutls28
> Version: 3.6.13-2
> Severity: serious
> Tags: ftbfs

> https://buildd.debian.org/status/logs.php?pkg=gnutls28&ver=3.6.13-3
> https://buildd.debian.org/status/logs.php?pkg=gnutls28&ver=3.6.13-4

> ...
[...]

> The conova buildds are IPv6-only, see #962019 for a similar
> problem in perl.

Helo Adrian,

is there a way to declare a dependency on IPv4 for building?

Also the setup is strange, both netstat and ifconfig show IPv4:

DEBUG info about network setup starts ...
if test -x /sbin/ifconfig ; then /sbin/ifconfig ; else true ; fi
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 2a02:16a8:dc41:100::240  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::216:37ff:fed2:16f0  prefixlen 64  scopeid 0x20<link>
        ether 00:16:37:d2:16:f0  txqueuelen 1000  (Ethernet)
        RX packets 108814178  bytes 157204088386 (146.4 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13855486  bytes 11641875516 (10.8 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4506091  bytes 20691973484 (19.2 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4506091  bytes 20691973484 (19.2 GiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

netstat -tln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:5666            0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
tcp        0      0 127.0.0.1:8888          0.0.0.0:*               LISTEN
tcp6       0      0 :::25                   :::*                    LISTEN
tcp6       0      0 :::5666                 :::*                    LISTEN
tcp6       0      0 :::4949                 :::*                    LISTEN
tcp6       0      0 ::1:53                  :::*                    LISTEN
tcp6       0      0 :::22                   :::*                    LISTEN
... DEBUG info about network setup ends.
dh_auto_test -O--builddirectory=b4deb --verbose -- VERBOSE=1
	cd b4deb && make -j4 check VERBOSE=1 VERBOSE=1

cu Andreas

PS: I wish the introduction of IPv6-only buildds a) had not happened
when I was trying to get a fix for a serious bug into testing (and
buster) and b) was not happening without announcement.

-- 
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