Comment 4 for bug 1889491

I use 3.3.2.11. I'll try upgrading, but I do not think it will make a difference. ASDF does the right thing. An up-to-date check in compute-action-stamp is (up-to-date-p (timestamp<= latest-in earliest-out)) and it has not been touched in last 3 years.
What timestamps are you getting on the generated files? In my case
ls --full-time -rt quicklisp/dists/quicklisp/software/osicat-20180228-git/posix/wrappers*
gives
 4180 2020-07-29 18:23:17.264483694 -0700 quicklisp/dists/quicklisp/software/osicat-20180228-git/posix/wrappers__wrapper.c
32400 2020-07-29 18:23:18.114473769 -0700 quicklisp/dists/quicklisp/software/osicat-20180228-git/posix/wrappers__wrapper.o
 8649 2020-07-29 18:23:18.627467780 -0700 quicklisp/dists/quicklisp/software/osicat-20180228-git/posix/wrappers.processed-wrapper-file
43710 2020-07-29 18:23:18.734466530 -0700 quicklisp/dists/quicklisp/software/osicat-20180228-git/posix/wrappers.fasl

so wrappers.processed-wrapper-file is newer than wrappers__wrapper.o and the up-to-date check in compute-action-stamp fails.