When disabling ARCH_MIN_SSE2, the ANSI code path triggers several untraceable warnings that are nonsense (like integer union members giving warnings about pointer overflow). GCC purportedly has raised false positives with the overflow detection setting this high. Since it cannot give reliable reports in the ANSI code path for this RSP plugin (which does very little with what are actually pointers anyway in the vector unit), the level has been lowered down to 1.
Explicitly linking in a dependency to libc allows us to analyze the dependency chain of rsp.so with `ldd ./rsp.so`. Without the C library linked in, the shared object will be reported falsely as "statically linked".