From 333098d850b97f70bfc82c19519677bae031af17 Mon Sep 17 00:00:00 2001
From: Nigel Tao <nigeltao@golang.org>
Date: Mon, 2 Mar 2015 11:09:14 +1100
Subject: [PATCH] audio: build on linux, not just darwin.

Change-Id: Ie10c29012bf6769591a1ad1c1e9ee322d780608e
Reviewed-on: https://go-review.googlesource.com/6392
Reviewed-by: David Crawshaw <crawshaw@golang.org>
---
 audio/al/al.go      | 18 ++++++++++++++----
 audio/al/const.go   |  4 ++--
 audio/alc/alc.go    | 14 +++++++++++++-
 audio/audio.go      |  2 +-
 audio/audio_test.go |  2 +-
 5 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/audio/al/al.go b/audio/al/al.go
index 1eb5a74..2f1292e 100644
--- a/audio/al/al.go
+++ b/audio/al/al.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin
+// +build darwin linux,!android
 
 // Package al provides OpenAL Soft bindings for Go.
 //
@@ -11,20 +11,30 @@
 package al
 
 /*
-// TODO(jbd,crawshaw): Add android, linux and windows support.
+// TODO(jbd,crawshaw): Add android and windows support.
 
-#cgo darwin   CFLAGS: -DGOOS_darwin
-#cgo darwin  LDFLAGS: -framework OpenAL
+#cgo darwin   CFLAGS:  -DGOOS_darwin
+#cgo linux    CFLAGS:  -DGOOS_linux
+#cgo darwin   LDFLAGS: -framework OpenAL
+#cgo linux    LDFLAGS: -lopenal
 
 #ifdef GOOS_darwin
 #include <stdlib.h>
 #include <OpenAL/al.h>
 #endif
 
+#ifdef GOOS_linux
+#include <AL/al.h>
+#endif
 */
 import "C"
 import "unsafe"
 
+/*
+On Ubuntu 14.04 'Trusty', you may have to install these libraries:
+sudo apt-get install libopenal-dev
+*/
+
 // Enable enables a capability.
 func Enable(capability int32) {
 	C.alEnable(C.ALenum(capability))
diff --git a/audio/al/const.go b/audio/al/const.go
index db4450d..02fe1e2 100644
--- a/audio/al/const.go
+++ b/audio/al/const.go
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package al
+// +build darwin linux,!android
 
-// +build darwin
+package al
 
 // Error returns one of these error codes.
 const (
diff --git a/audio/alc/alc.go b/audio/alc/alc.go
index 65b3258..f1aa94a 100644
--- a/audio/alc/alc.go
+++ b/audio/alc/alc.go
@@ -2,23 +2,35 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin
+// +build darwin linux,!android
 
 // Package alc provides OpenAL's ALC (Audio Library Context) bindings for Go.
 package alc
 
 /*
 #cgo darwin   CFLAGS:  -DGOOS_darwin
+#cgo linux    CFLAGS:  -DGOOS_linux
 #cgo darwin   LDFLAGS: -framework OpenAL
+#cgo linux    LDFLAGS: -lopenal
 
 #ifdef GOOS_darwin
 #include <stdlib.h>
 #include <OpenAL/alc.h>
 #endif
+
+#ifdef GOOS_linux
+#include <stdlib.h>
+#include <AL/alc.h>
+#endif
 */
 import "C"
 import "unsafe"
 
+/*
+On Ubuntu 14.04 'Trusty', you may have to install these libraries:
+sudo apt-get install libopenal-dev
+*/
+
 // Error returns one of these values.
 const (
 	InvalidDevice  = 0xA001
diff --git a/audio/audio.go b/audio/audio.go
index 1a58044..239aea5 100644
--- a/audio/audio.go
+++ b/audio/audio.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin
+// +build darwin linux,!android
 
 // Package audio provides a basic audio player.
 package audio
diff --git a/audio/audio_test.go b/audio/audio_test.go
index fd04217..1d96e3c 100644
--- a/audio/audio_test.go
+++ b/audio/audio_test.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build darwin
+// +build darwin linux,!android
 
 package audio