Hi,
Clang 13 on my machine and peripatus (but not Apple clang 13 on eg
sifika, I'm still confused about Apple's versioning but I think that's
really llvm 12-based) warns:
geqo_main.c:86:8: warning: variable 'edge_failures' set but not used
[-Wunused-but-set-variable]
int edge_failures = 0;
Here's one way to silence it.