Upstream is aware and indicated the next version will accept any version of guile.
Bugzilla doesn't like this as a "See also" URL, so it goes here:
Based on the upstream comment:
"With the next release, AutoGen will no longer check the Guile version. It will now be simply expected that Guile will be at or after version 2.2 and that they won't change the interface anymore."
Some investigation could help us figure out if the check is just useless as-is and any compatibility issues were removed in previous releases.
Created attachment 664069 [details]
build.log for the record
Unfortunately the upstream changes are part of a humungous commit including unrelated fixes. However, it looks like 5.20 will be out soon (5.19.98 was tagged 5/Oct).
Requested guile-3 compatible release in:
The bug has been closed via the following commit(s):
Author: Sergei Trofimovich <email@example.com>
AuthorDate: 2021-06-19 08:45:00 +0000
Commit: Sergei Trofimovich <firstname.lastname@example.org>
CommitDate: 2021-06-19 08:45:18 +0000
sys-devel/autogen: add minimal guile-3 support
Reported-by: Cedric Sodhi
Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Sergei Trofimovich <email@example.com>
sys-devel/autogen/autogen-5.18.16-r1.ebuild | 1 +
.../autogen/files/autogen-5.18.16-guile-3.patch | 38 ++++++++++++++++++++++
2 files changed, 39 insertions(+)