https://github.com/RsyncProject/rsync/pull/706
https://github.com/RsyncProject/rsync/pull/705
https://github.com/RsyncProject/rsync/pull/703

... which should override the runtime check.

... as support is bases on a runtime check. If this build host is
missing IPv6 support, the resulting rsync package is as well.

... to fix a strange issue. Version 3.2.7-5 failed with:

Sep 24 12:45:14 leda.eworm.net systemd[1]: Started fast remote file copy program daemon.
Sep 24 12:45:14 leda.eworm.net rsyncd[3157]: rsyncd version 3.2.7 starting, listening on port 1873
Sep 24 12:45:14 leda.eworm.net rsyncd[3157]: rsync: getaddrinfo: bind address ::1: Address family for hostname not supported
Sep 24 12:45:14 leda.eworm.net rsyncd[3157]: rsync error: error in socket IO (code 10) at socket.c(545) [Receiver=3.2.7]
Sep 24 12:45:14 leda.eworm.net systemd[1]: rsyncd.service: Main process exited, code=exited, status=10/n/a
Sep 24 12:45:14 leda.eworm.net systemd[1]: rsyncd.service: Failed with result 'exit-code'.

devtools 20230105-1 enables the debug option by default.

A follow-up commit will remove debug from alongside other options.

rrsync was converted from peel to python...

https://www.mail-archive.com/rsync%40lists.samba.org/msg33576.html

This was to collect some fixes for the pre-release, but everything
is included in current release already.