Title: fortify-headers 2.2
Date: 2024-04-02 13:00

Now that the dust has settled a bit and that kinks have being ironed out, 
time to publish the version [2.2](https://github.com/jvoisin/fortify-headers/releases/tag/2.2)
of [fortify-headers](https://github.com/jvoisin/fortify-headers). No new major
features, but a couple of bugfixes. As usual, the [Gentoo Hardened](https://wiki.gentoo.org/wiki/Hardened_Gentoo)
and [Chimera Linux](https://chimera-linux.org/) users are to thank for rooting
out bugs!

I gave a small internal talk as part of the weekly "Safe Coding Sessions" at
Google about fortify-headers, the slides can be found
[here]({static}/files/fortify_source.pdf).

## Changelog

- relax checks for `memchr` on C11 and above
- add null-ptr related checks to `mem*` functions
- increase portability with clang regarding `__has_builtin` and `defined`
- fix a typo in `memcpy` ignoring `__builtin_memcpy`
- increase the portability of the testsuite on non x86 architectures