lang/python37 - 3.7.10 fails the 'make install' step

[Torfinn Ingolfsen]

Hello,
python37 (3.7.10, ports tree updated today) build fine, but fails the
'make install' step.
root at bvm5# make install
===>  Installing for python37-3.7.10
===>  Checking if python37 is already installed
actual-package-depends: dependency on /lib/libreadline.so.8 not
registered (normal if it belongs to base)
===>   Registering installation for python37-3.7.10
pkg-static: Unable to access file
/usr/ports/lang/python37/work/stage/usr/local/lib/python3.7/lib-dynload/readline.so:No
such file or directory
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/lang/python37
*** Error code 1

Stop.
make: stopped in /usr/ports/lang/python37

Any idea why?
This is on FreeBSD 11.4-release-p8
root at bvm5# freebsd-version -ku
11.4-RELEASE-p8
11.4-RELEASE-p8
root at bvm5# uname -a
FreeBSD bvm5.kg4.no 11.4-RELEASE-p8 FreeBSD 11.4-RELEASE-p8 #0: Tue
Feb 23 09:04:22 UTC 2021
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

ports tree updated today, everything (yes, all ports) installed from scratch.
Nothing in make.conf. src.conf

-- 
Regards,
Torfinn Ingolfsen