From 4e0861182ee76cfeb2c040d204d6b5ff9eeeac5c Mon Sep 17 00:00:00 2001
From: contradict <contradict@gmail.com>
Date: Thu, 11 Jun 2020 21:01:23 -0700
Subject: [PATCH] Fix wavplay on linux, and maybe OSX

---
 src/WAV.jl | 37 ++++++++++++++++---------------------
 1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/src/WAV.jl b/src/WAV.jl
index b3b9908..d3d476a 100644
--- a/src/WAV.jl
+++ b/src/WAV.jl
@@ -10,32 +10,27 @@ import Libdl
 using FileIO
 using Logging
 
-function __init__()
-    module_dir = dirname(@__FILE__)
-    try 
-        # check we haven't already imported this package into the namespace
-        # this will throw an error otherwise
-        WAV
-    catch e
-        if isa(e, UndefVarError) && e.var == :WAV
-            if Libdl.find_library(["libpulse-simple", "libpulse-simple.so.0"]) != ""
-                include(joinpath(module_dir, "wavplay-pulse.jl"))
-            elseif Libdl.find_library(["AudioToolbox"],
-                                      ["/System/Library/Frameworks/AudioToolbox.framework/Versions/A"]) != ""
-                include(joinpath(module_dir, "wavplay-audioqueue.jl"))
-            else
-                wavplay(data, fs) = @warn "wavplay is not currently implemented on $(Sys.KERNEL)"
-            end
-        else
-            throw(e)
-        end
+wavplay(fname) = wavplay(wavread(fname)[1:2]...)
+module_dir = dirname(@__FILE__)
+@static if Sys.islinux()
+    @static if Libdl.find_library(["libpulse-simple", "libpulse-simple.so.0"]) != ""
+        include(joinpath(module_dir, "wavplay-pulse.jl"))
+    else
+        wavplay(data, fs) = @warn "libpulse-simple not found, wavplay will not work"
+    end
+elseif Sys.isapple()
+    @static if Libdl.find_library(["AudioToolbox"],
+                                  ["/System/Library/Frameworks/AudioToolbox.framework/Versions/A"]) != ""
+        include(joinpath(module_dir, "wavplay-audioqueue.jl"))
+    else
+        wavplay(data, fs) = @warn "AudioToolbox.framework not found, wavplay will not work"
     end
-    nothing
+else
+    wavplay(data, fs) = @warn "wavplay is not currently implemented on $(Sys.KERNEL)"
 end
 
 include("AudioDisplay.jl")
 include("WAVChunk.jl")
-wavplay(fname) = wavplay(wavread(fname)[1:2]...)
 
 # The WAV specification states that numbers are written to disk in little endian form.
 write_le(stream::IO, value) = write(stream, htol(value))