Your bug report

#52054: clangd cannot find <stddef.h>

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 52054@debbugs.gnu.org.

-- 
52054: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=52054
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems