Should -fexceptions / -frtti be part of @nanobind's copts?

[nicholasjng]

wjakob/nanobind@698f449 says that nanobind cannot work properly without RTTI and exceptions.

Even though I request neither of these explicitly in my nanobind copts, everything seems to work as expected. Or does it? The nanobind_example and google/benchmark are green, but I'm wondering if I need to be more thorough in my copts here.