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I love that the author provides docker images for cross compilation. Cross compilation environments are such a pain to setup and maintain - having docker images

• herge 10y ago
  Docker will only let you cross-compile to OSes with the same kernel, which is relatively limited. A full set of say vagrant files would be slower, but a lot more polyvalent (but even then it would not let you, say, compile a windows binary from linux).
  • detaro 10y ago
    You can cross-compile to completely different environments. It just can be tricky to set up, so prepared docker images with e.g. the toolchain to build a Windows executable on Linux are great to have, and what is provided here.
    • cryptarch 10y ago
      I think it's a nice idea in theory to provide cross-compilation support by means of emulating all possible target architectures on the compiling machine. Then I remember that I'd be managing a custom heterogenous compute cluster just to compile some code.
      • mentat 10y ago
        It's not emulation, it's cross-compilation which has existed basically forever. You don't have to target the same instruction set as the one you're compiling on.
        • cryptarch 10y ago
          I am well aware of that, I was referencing the concept of "cross-compilation" the GP seemed to have.
          • mentat 10y ago
            I see what you mean now, using like qemu or something. So "emulated native compilation". It is an interesting concept. Sorry for misunderstanding you.
            • cryptarch 10y ago
              Indeed, "virtualbox-the-crosscompiler" (probably from hell). QEMU would be a few orders of magnitude slower but I think it supports many more archs. No hard feelings :)
  • seiferteric 10y ago
    As long as they provide the correct kernel headers and library headers (libc etc) for your target, it should work fine in docker.
    • lmb 10y ago
      Go doesn't really use libc all that much. Syscalls are also implemented in pure go + as, so there aren't really header files to provide. That makes for a great cross-compilation story.
• therecipe 10y ago
  author here; Using Docker saved me from creating the code to cross compile from windows->linux, darwin->linux/windows, ... And this alone was worth it, but being able to ship something that works out of the box is nice a nice bonus :) edit: I'm also planning to create macOS and iOS target images.