stderr error: header 'steam_gameserver.h' does not exist.

[podrivo]

Hello! @Noxime

I'm trying to build Rust in Windows and macOS, but when compiling steamworks-sys, I get this:

error: failed to run custom build command for `steamworks-sys v0.7.0`

Caused by:
  process didn't exit successfully: `/Library/WebServer/Documents/hello_world/target/debug/build/steamworks-sys-76cbcb8d9f2d24c2/build-script-build` (exit status: 101)
  --- stdout
  cargo:rustc-link-search=/sdk/redistributable_bin/osx
  cargo:rustc-link-lib=dylib=steam_api

  --- stderr
  error: header '/sdk/public/steam/steam_gameserver.h' does not exist.
  thread 'main' panicked at 'Unable to generate bindings: ()', /Users/podrivo/.cargo/registry/src/github.com-1ecc6299db9ec823/steamworks-sys-0.7.0/build.rs:49:10
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Testing on:

• macOS Catalina 10.15.7
• Windows 10
• Rust 1.53.0
• clang version 12.0.0
• Steam SDK 1.51

I'm running this command to build (without the SDK STEAM_SDK_LOCATION env var in Windows):

STEAM_SDK_LOCATION=/sdk/ cargo build

This is my Cargo.toml:

[package]
name = "hello_world"
version = "0.1.0"

[dependencies]
steamworks = "0.7.0"

And this is my folder structure:

hello_world
├── sdk
├── src
│   └── main.rs
├── Cargo.toml
└── steam_appid.txt

Thoughts on why this is happening?
Thank you!

[Noxime]

Sorry for taking a while! This is a shot in the dark, are you sure your STEAM_SDK_LOCATION is correct? In the command you posted you have STEAM_SDK_LOCATION=/sdk/. On MacOS and other *nix operating systems when a path starts with a / it means its from the filesystem root, so what you probably wanted was just sdk/ or ./sdk/ which will refer to the folder sdk in current folder.

[podrivo]

Hey @Noxime. No problem at all! Thanks for having the time! 😄

Yes, you are correct! I tried multiple ways to link to the SDK folder, like /sdk/ sdk/ ./sdk ./sdk/, but it seems like all options couldn't find the SDK files and gave the same error. So I moved it to my Desktop and updated the env var to STEAM_SDK_LOCATION="$HOME/Desktop/sdk" and the build worked!

I thought this was related to the macOS, because you can find multiple threads about missing headers in Catalina 10.15, but even thought I tried every single solution I could find, I got the same error every build. And when I went to the Windows to test it and got the same exact error, I decided to ask for help... 😅

Also, I had to reinstall llvm with brew, and update llvm/bin to $PATH and set $LDFLAGS and $CPPFLAGS, as suggested by brew installer and just like this issue: #52

I can't make it run, though. But I'll open a separate issue for this! (:
Thanks for the help! ✨