Windows support

[besaleli]

This issue is intended to be a discussion thread for Windows support.

Currently, we are only building for MacOS and windows. I'm sure that we could compile from source on windows, but would love to hear if people have use cases for encoderfile on Windows.

If you try building encoderfile on Windows, please comment your experience below!

[javiermtorres]

Steps taken to create encoderfile:

• Use the recommended install methods for the compilation tools (protoc ended up in the .cargo/bin dir)
  • https://win.rustup.rs/
  • https://github.com/protocolbuffers/protobuf/releases/download/v34.0-rc2/protoc-34.0-rc-2-win64.zip
• There are issues with permissions; I'll look for a fix

error[E0433]: failed to resolve: could not find `unix` in `os`
   --> encoderfile\src\build_cli\base_binary\mod.rs:108:22
    |
108 |         use std::os::unix::fs::PermissionsExt;
    |                      ^^^^ could not find `unix` in `os`
    |
note: found an item that was configured out
   --> C:\Users\jmtor\.rustup\toolchains\stable-x86_64-pc-windows-msvc\lib/rustlib/src/rust\library\std\src\os\mod.rs:36:9
    |
 29 |     doc,
    |     --- the item is gated here
...
 36 | pub mod unix {}
    |         ^^^^
note: found an item that was configured out
   --> C:\Users\jmtor\.rustup\toolchains\stable-x86_64-pc-windows-msvc\lib/rustlib/src/rust\library\std\src\os\mod.rs:85:9
    |
 84 | #[cfg(all(not(target_os = "hermit"), any(unix, doc)))]
    |                                         ----------- the item is gated here
 85 | pub mod unix;
    |         ^^^^

Note: Makefile will not work out of the box, so either the gnuwin32 version is used (https://gnuwin32.sourceforge.net/packages/make.htm) or some powershell equivalent is developed.

[javiermtorres]

When fixing the permissions (basically removing its handling in win), a lot of linking errors appear, maybe due to static vs dynamic linking (sorry for the error messages in Spanish!):

  = note: libesaxx_rs-dd01533622b8677b.rlib(0602fb52cb66f316-esaxx.o) : error LNK2038: se detectaron diferencias para 'RuntimeLibrary': el valor 'MT_StaticRelease' no coincide con el valor 'MD_DynamicRelease' en libort_sys-12cf2fbd4562753d.rlib(onnxruntime_c_api.obj)

And then there are a lot of LNK2001/LNK2019 errors complaining about missing external symbols in multiple libraries.