From d1cf14a097dbd6ed6bbc469dd53eed3451c84fa1 Mon Sep 17 00:00:00 2001
From: Nadav Bhonker <nadavbh@gmail.com>
Date: Tue, 28 Feb 2017 17:12:36 +0200
Subject: [PATCH] audio fix for when SDL is off

---
 setup.py                       | 4 ++--
 src/environment/RetroAgent.cpp | 9 +++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index 082593d..366fb01 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
 def run_cmake():
     if ds.find_executable('cmake') is None:
         print("CMake is required to build RLE")
-        print("Please install cmake version >= 3.02 and re-run setup")
+        print("Please install cmake version >= 2.8 and re-run setup")
         sys.exit(-1)
 
     new_dir = op.join(op.split(__file__)[0], 'build')
@@ -42,7 +42,7 @@ def run(self):
         ds.spawn(['./copy_cores.sh'])
         _build.build.run(self)
 
-version = '1.1.2'
+version = '1.1.3'
 setup(name = 'rle_python_interface',
       version=version,
       description = 'Retro Learning Environment Python Interface based on Ben Goodrich\'s work',
diff --git a/src/environment/RetroAgent.cpp b/src/environment/RetroAgent.cpp
index cc4b1e4..9e52fd1 100644
--- a/src/environment/RetroAgent.cpp
+++ b/src/environment/RetroAgent.cpp
@@ -25,7 +25,9 @@ using namespace rle;
 std::atomic_uint RetroAgent::numAgents{0};
 thread_local struct RetroAgent::g_retro_ RetroAgent::g_retro;
 thread_local struct RetroAgent::g_video_ RetroAgent::g_video;
+#ifdef __USE_SDL
 thread_local static snd_pcm_t *g_pcm = NULL;
+#endif
 
 struct keymap {
 	unsigned k;
@@ -223,6 +225,7 @@ static void video_refresh(const void *data, unsigned width, unsigned height, uns
 }
 
 static void audio_init(int frequency) {
+#ifdef __USE_SDL
 	int err;
 
 	if ((err = snd_pcm_open(&g_pcm, "default", SND_PCM_STREAM_PLAYBACK, 0)) < 0)
@@ -232,13 +235,17 @@ static void audio_init(int frequency) {
 
 	if (err < 0)
 		die("Failed to configure playback device: %s", snd_strerror(err));
+#endif
 }
 
 static void audio_deinit() {
+#ifdef __USE_SDL
 	snd_pcm_close(g_pcm);
+#endif
 }
 
 static size_t audio_write(const void *buf, unsigned frames) {
+#ifdef __USE_SDL
 	int written = snd_pcm_writei(g_pcm, buf, frames);
 
 	if (written < 0) {
@@ -249,6 +256,8 @@ static size_t audio_write(const void *buf, unsigned frames) {
 	}
 
 	return written;
+#endif
+	return 0;
 }
 
 static void core_log(enum retro_log_level level, const char *fmt, ...) {