build crashes at alsa-sys

[HeinrichZurHorstMeyer]

Description
When I try to compile Spotifyd on Windows 10, it crashes while compiling alsa-sys v0.1.2.

To Reproduce
Steps to reproduce the behavior:

1. run git clone https://github.com/Spotifyd/spotifyd/
2. go to spotifyd
3. run cargo build --release
4. See error: error: failed to run custom build command for alsa-sys v0.1.2

Expected behavior

It should not have ended with an error, I guess.

Logs

Click to show logs

### many "Compiling ..." lines ###

Compiling idna v0.1.5
error: failed to run custom build command for alsa-sys v0.1.2

Caused by:
process didn't exit successfully: C:\Users\user\spotifyd\target\release\build\alsa-sys-6e499960604f54e7\build-script-build (exit code: 101)
--- stderr
thread 'main' panicked at 'called Result::unwrap() on an Err value: "\"pkg-config\" \"--libs\" \"--cflags\" \"alsa\" did not exit successfully: exit code: 1
--- stderr
Package alsa was not found in the pkg-config search path.\r
Perhaps you should add the directory containing alsa.pc\'\r to the PKG_CONFIG_PATH environment variable\r No package \'alsa\' found\r "', C:\Users\user\.cargo\registry\src\git.luolix.top-1ecc6299db9ec823\alsa-sys-0.1.2\build.rs:4:5 note: run with RUST_BACKTRACE=1` environment variable to display a backtrace

warning: build failed, waiting for other jobs to finish...
error: build failed

Compilation flags

• dbus_mpris
• dbus_keyring
• alsa_backend
• portaudio_backend
• pulseaudio_backend
• rodio_backend

Versions:

• OS: Windows 10
• Spotifyd: v0.2.24
• cargo: 1.44.1

Additional context
The error pops up for me at the current version, v0.2.24, v0.2.23 and probably multiple more.
When running with --no-default-features it spits 14 errors more.
And I do not have any knowledge of rust and how I can set a global variabe for Rust.

[mainrs]

That's because spotifyd doesn't run on Windows (yet). ALSA is an audio library for linux.

[mainrs]

You can, however, check out this fork which has added Windows support on master:
https://github.com/JCapucho/spotifyd

I didn't test it myself or can provide any information on how to compile it properly. But a simple cargo run --features rodio_backend --no-default-features should work I think.

Here is the PR to include it in our repository: #602

[HeinrichZurHorstMeyer]

ok, thank you.

[mainrs]

You can run it inside of WSL (Windows Subsystem Linux) IIRC. I'd just use the rodio_backend for it. So running cargo run --no-default-features --features rodio_backend should work. Note that DBUS is not supported inside of WSL so you can't use MPRIS.

WSL is a feature inside of Windows that you might need to activate (plus reboot) to have it enabled. It's like a build-in VM for linux with just a console though.

[kmccmk9]

Can confirm building/running with those flags does work under Windows 64 Bit.