Bug#962318: libmojolicious-perl: build fails on IPv6-only buildds

[Niko Tyni]

On Tue, Jun 09, 2020 at 06:40:12PM +0200, gregor herrmann wrote:
> On Mon, 08 Jun 2020 10:18:09 +0300, Niko Tyni wrote:
> 
> > This seems to be a wider issue. Copying the debian-perl list for
> > discussion.
> 
> Thanks for the analysis!
>  
> > I'm left wondering if the IO::Socket::IP default behaviour is desirable,
> > or whether we should try to change it (maybe to special case localhost
> > and/or 0.0.0.0 ?)
> 
> Yes please. Patching all reverse dependencies sounds unattractive.

I've since test rebuilt the ~5000 packages that have a build or runtime
dependency on perl, on a system with IPv4 and IPv6 configured on the lo
device, and just a link-local IPv6 address on another device. I found
93 regressions, list below. My hunch is that more than half of them are
due to Net::EmptyPort (in libtest-tcp-perl) being broken.

I'm test rebuilding the whole archive now to see if other parts of the
archive have similar issues, but that's going to take quite a while.

I have not had the tuits yet for looking at IO::Socket::IP properly.
It seems to me that it could look at the address and pass AI_NUMERICHOST
to getaddrinfo(3) if it looks like an IPv4 address. I guess matching
against qr/^\d+\.\d+\.\d+\.\d+$/ would suffice.

I can try a rebuild with a patch like that next, but happy if somebody
else wants to pick this up. There's Perl 5.32 on my TODO list as well :)

IPv6-only regressions spotted:

alice_0.19-2
boxbackup_0.13~~git20200326.g8e8b63c-1
kgb-bot_1.56-1
libanyevent-connection-perl_0.06-5
libanyevent-connector-perl_0.03-2
libanyevent-memcached-perl_0.08-1
libanyevent-redis-perl_0.24-2
libapache-singleton-perl_0.17-1
libapache2-authcookie-perl_3.30-1
libapache2-reload-perl_0.13-3
libapp-termcast-perl_0.13-3
libaudio-mpd-perl_2.004-2
libcgi-application-plugin-captcha-perl_0.04-2
libcgi-application-server-perl_0.063-2
libcorona-perl_0.1004-4
libcpan-mini-inject-perl_0.35-1
libdancer-perl_1.3513+dfsg-1
libdanga-socket-perl_1.62-1
libfcgi-engine-perl_0.22-1
libfurl-perl_3.13-2
libgearman-client-perl_2.004.015-1
libhtml-html5-parser-perl_0.301-2
libhttp-async-perl_0.33-1
libhttp-daemon-ssl-perl_1.05-01-2
libhttp-server-simple-mason-perl_0.14-2
libio-socket-ssl-perl_2.067-1
libio-socket-timeout-perl_0.32-1
libjson-validator-perl_3.25+dfsg-1
liblwp-protocol-https-perl_6.07-2
libmime-tools-perl_5.509-1
libmojo-sqlite-perl_3.003-1
libmojolicious-perl_8.52+dfsg-2
libmojolicious-plugin-assetpack-perl_2.08-2
libmojolicious-plugin-authentication-perl_1.33-1
libmojolicious-plugin-authorization-perl_1.0302-2
libmojolicious-plugin-basicauth-perl_0.08-1
libmojolicious-plugin-bcrypt-perl_0.14-2
libmojolicious-plugin-cgi-perl_0.40-1
libmojolicious-plugin-i18n-perl_1.60-1
libmojolicious-plugin-mailexception-perl_0.20-1
libmojolicious-plugin-renderfile-perl_0.12-4
libmonitoring-livestatus-perl_0.80-1
libnet-facebook-oauth2-perl_0.12-1
libnet-http-perl_6.19-1
libnet-https-nb-perl_0.15-1
libnet-ldap-server-test-perl_0.22-1
libnet-server-mail-perl_0.28-1
libnet-server-perl_2.009-2
libnet-sip-perl_0.822-1
libperlio-via-timeout-perl_0.32-1
libplack-app-proxy-perl_0.29-1
libplack-handler-anyevent-fcgi-perl_0.01-1
libplack-handler-fcgi-ev-perl_0.01-1
libplack-middleware-deflater-perl_0.12-2
libplack-middleware-session-perl_0.33-1
libplack-perl_1.0047-2
libplack-test-agent-perl_1.4-2
libplack-test-externalserver-perl_0.02-1
libpod-webserver-perl_3.11-1
libproc-guard-perl_0.07-1
libprotocol-http2-perl_1.10-1
libredis-perl_1.9950-1
librest-client-perl_273-1
librpc-xml-perl_0.80-2
librt-client-rest-perl_0.60-1
libtest-fake-httpd-perl_0.08-1
libtest-http-server-simple-stashwarnings-perl_0.04-2
libtest-tcp-perl_2.22-1
libtest-www-declare-perl_0.02-4
libtest-www-mechanize-mojo-perl_0.0.20-1
libtest-www-mechanize-perl_1.52-1
libweb-id-perl_1.927-2
libweb-machine-perl_0.17-1
libwiki-toolkit-plugin-ping-perl_0.03-2
libwww-mechanize-perl_1.97-1
myproxy_6.2.6-1
perlbal_1.80-3
pinto_0.14000-1
request-tracker4_4.4.4-1
spamassassin_3.4.4-1
starman_0.4015-1
stunnel4_5.56+dfsg-3
twiggy_0.1025+dfsg-1
inn2_2.6.3+20200601-1
libcrypt-ssleay-perl_0.73.06-1
libnanomsg-raw-perl_0.10-1
libapache2-mod-perl2_2.0.11-2
feersum_1.407-2
libapache-authenhook-perl_2.00-04+pristine-7
libapache-ssllookup-perl_2.00-04-3
libredis-fast-perl_0.26+dfsg-2
remctl_3.16-4
nbdkit_1.20.2-1

-- 
Niko