https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90020
--- Comment #14 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The test gcc.dg/torture/pr90020.c fails on darwin:
Undefined symbols for architecture x86_64:
"_x", referenced from:
_main in ccemobuO.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
