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As opposed to C/C++ compilers being built in C/C++? EDIT: Try to build NetBSD for some esoteric platform from the comfort of your desktop machine. Remember to

• steveklabnik 8y ago
  In my understanding, Go re-implements the system's interface, rather than using libc (or the equivalent), even on platforms where the syscall interface isn't considered stable. This means cross-compiling is really easy, but it can also mean breakage when the unstable interface changes. A tradeoff like anything else.
• Thaxll 8y ago
  Rust compiler is LLVM afaik so C++, same for the JVM / C#. Having your entire runtime / tools in the same language make it easier.
  • steveklabnik 8y ago
    This is true for Rust, however, given that LLVM is the project doing the codegen, it's a little bit special; cross-compiling it to the platforms it supports is a bit easier than a random C++ library, since it's the one with the support in the first place. Rust projects make much more use of C libraries than Go projects do, though, so for things other than the Rust compiler, this is still a good point.