With the release of GCC 14.1 earlier this month[1], they introduced a
few new security related options, most notably -fhardened[2], which
according to the documentation[3], "(e)nable a set of flags for C and
C++ that improve the security of the generated code without affecting
its ABI (...) intended to be used in production builds (...) supported
on GNU/Linux targets."

While I would think its use should cause no side effects, has anyone
built and run sendmail compiled with such flags? If so, any noticeable difference/errors/warnings/changes to any behavior?

[1] https://gcc.gnu.org/gcc-14/
[2] https://www.phoronix.com/news/GCC-fhardened-Hardening-Option
[3] https://gcc.gnu.org/onlinedocs/gcc-14.1.0/gcc/Instrumentation-Options.html#index-fhardened

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