guy@guixSd ~/tuto/c$ gcc -m32 -o hello hello.c 

In file included from /home/guy/.guix-profile/include/features.h:452,

                 from /home/guy/.guix-profile/include/bits/libc-header-start.h:33,

                 from /home/guy/.guix-profile/include/stdio.h:27,

                 from hello.c:1:

/home/guy/.guix-profile/include/gnu/stubs.h:7:11: erreur fatale: gnu/stubs-32.h : Aucun fichier ou dossier de ce type

 # include <gnu/stubs-32.h>

           ^~~~~~~~~~~~~~~~

compilation terminée.