Build for Windows Has Errors

[chrisherczeg]

Looking at the Github Actions pipeline, it appears that build validation and testing is only done for Linux. Is the official platform only supported for Linux or is this a current gap in build validation?

After getting past openssl compiling issues for windows inside the cargo xtask precheckin by compiling openssl myself and setting the required environment variables, I am now facing

 Compiling caliptra-builder v0.1.0 (https://github.com/chipsalliance/caliptra-sw?rev=d12dbf5291e61a8ea81e969fa26b709480a8e5ea#d12dbf52)
error[E0432]: unresolved import `std::os::fd`
   --> C:\Users\chrisherczeg\.cargo\git\checkouts\caliptra-sw-5540699bb2674008\d12dbf5\builder\src\lib.rs:10:14
    |
10  | use std::os::fd::AsRawFd;
    |              ^^ could not find `fd` in `os`
    |
note: found an item that was configured out
   --> C:\Users\chrisherczeg\.rustup\toolchains\nightly-2024-10-01-x86_64-pc-windows-msvc\lib/rustlib/src/rust\library\std\src\os\mod.rs:164:9
    |
164 | pub mod fd;
    |         ^^
note: the item is gated here
   --> C:\Users\chrisherczeg\.rustup\toolchains\nightly-2024-10-01-x86_64-pc-windows-msvc\lib/rustlib/src/rust\library\std\src\os\mod.rs:163:1
    |
163 | #[cfg(any(unix, target_os = "hermit", target_os = "wasi", doc))]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0432]: unresolved import `nix::fcntl`
  --> C:\Users\chrisherczeg\.cargo\git\checkouts\caliptra-sw-5540699bb2674008\d12dbf5\builder\src\lib.rs:25:10
   |
25 | use nix::fcntl::FlockArg;
   |          ^^^^^ could not find `fcntl` in `nix`

error[E0433]: failed to resolve: could not find `fcntl` in `nix`
   --> C:\Users\chrisherczeg\.cargo\git\checkouts\caliptra-sw-5540699bb2674008\d12dbf5\builder\src\lib.rs:180:14
    |
180 |         nix::fcntl::flock(lock.as_raw_fd(), FlockArg::LockExclusive)?;
    |              ^^^^^ could not find `fcntl` in `nix`

error[E0599]: no method named `as_raw_fd` found for struct `File` in the current scope
   --> C:\Users\chrisherczeg\.cargo\git\checkouts\caliptra-sw-5540699bb2674008\d12dbf5\builder\src\lib.rs:180:32
    |
180 |         nix::fcntl::flock(lock.as_raw_fd(), FlockArg::LockExclusive)?;
    |                                ^^^^^^^^^
    |
help: there is a method `as_raw_handle` with a similar name
    |
180 |         nix::fcntl::flock(lock.as_raw_handle(), FlockArg::LockExclusive)?;

Which appears to be a UNIX only rust concept. Is there any way to resolve this? Is a Windows pipeline in the works / planned to prevent build breaks on Windows?