This may be related to the following change in debhelper 13.32. See also #1139889 [1].
[ Helmut Grohne ] * autoconf: export standard build tools [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1139889 -- debian-science-maintainers mailing list [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/debian-science-maintainers
