FWIW C++ in FreeBSD is a little contentious. The overall system build time is dominated by Clang, with the rest of FreeBSD "a wart on the side." In base, the

FWIW C++ in FreeBSD is a little contentious. The overall system build time is dominated by Clang, with the rest of FreeBSD "a wart on the side." In base, the C++ compiler was pretty much only used for devd (something vaguely like Linux' udev), and devd is written in a pre-C++11 dialect -- no new features. Using more of it isn't exactly encouraged; it's not allowed in the kernel. There are two significant barriers to Rust in FreeBSD base -- first, cultural: it's just a bunch of greybeards opposed to anything and everything new; and second, technical: Rust just doesn't (or didn't) have compiler backends for the same subset of platforms FreeBSD does (or did). (This situation is improving as FreeBSD finally drops official support for obsolete SPARC, 32-bit ARM, MIPS, and 32-bit PowerPC platforms, but obviously cultural barriers remain.)