Olivier Dion via Guix-patches via schreef op do 07-04-2022 om 20:18 [-
0400]:
> Headers of liburcu are used by headers of lttng.

This can be addressed without propagation, by substitute*.  Something
like:

  (lambda* (#:key inputs #:allow-other-keys)
    (substitute* (find-files ".h")
      (("some-liburcu-header.h")
       (search-input-file inputs "include/some-liburcu-header.h"))))

Attached is some more generic and automated code I wrote a while ago.
Maybe it's good enough for lttng?

Greetings,
Maxime.