diff --git a/cbits/proteaaudio_binding.cpp b/cbits/proteaaudio_binding.cpp
--- a/cbits/proteaaudio_binding.cpp
+++ b/cbits/proteaaudio_binding.cpp
@@ -62,25 +62,25 @@
 
 int loaderAvailable(char* suffix) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     return audio.loaderAvailable(suffix);
 }
 
 void volume(float left, float right) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return;
+    if((&audio) == 0) return;
     audio.volume(left,right);
 }
 
 sample_t sampleFromFile(char* filename, float volume) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     return (int)audio.sampleFromFile(filename, volume);
 }
 
 sample_t sampleFromMemoryWav(char *data, int size, float volume) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     AudioSample* pSample = loadWavFromMemory((unsigned char*)data, size);
     if(!pSample) return 0;
     unsigned int ret = audio.sampleFromMemory(*pSample, volume);
@@ -90,7 +90,7 @@
 
 sample_t sampleFromMemoryOgg(char *data, int size, float volume) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     AudioSample* pSample = loadOggFromMemory((unsigned char*)data, size);
     if(!pSample) return 0;
     unsigned int ret = audio.sampleFromMemory(*pSample, volume);
@@ -100,37 +100,37 @@
 
 int soundActive() {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     return (int)audio.soundActive();
 }
 
 void soundStopAll() {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return;
+    if((&audio) == 0) return;
     audio.soundStop();
 }
 
 // sound
 void soundLoop(sample_t sample, float volumeL, float volumeR, float disparity, float pitch) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return;
+    if((&audio) == 0) return;
     audio.soundLoop(sample, volumeL,volumeR,disparity,pitch);
 }
 
 void soundPlay(sample_t sample, float volumeL, float volumeR, float disparity, float pitch) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return;
+    if((&audio) == 0) return;
     audio.soundPlay(sample, volumeL,volumeR,disparity,pitch);
 }
 
 int soundUpdate(sample_t sample, float volumeL, float volumeR, float disparity, float pitch) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     return audio.soundUpdate(sample, volumeL,volumeR,disparity,pitch);
 }
 
 int soundStop(sample_t sample) {
     DeviceAudio & audio = DeviceAudio::singleton();
-    if((&audio) == nullptr) return 0;
+    if((&audio) == 0) return 0;
     return audio.soundStop(sample);
 }
diff --git a/proteaaudio.cabal b/proteaaudio.cabal
--- a/proteaaudio.cabal
+++ b/proteaaudio.cabal
@@ -1,15 +1,15 @@
 Name:                proteaaudio
-Version:             0.6.3
-Synopsis:            A wrapper for the proteaaudio library.
-Description:         A wrapper for the proteaaudio library. http://viremo.eludi.net/proteaAudio/
+Version:             0.6.4
+Synopsis:            Simple audio library for Windows/Linux/OSX.
+Description:         Simple audio library for Windows/Linux/OSX. Supports Ogg and Wav playback and multichannel mixing.
 License:             BSD3
 License-file:        LICENSE
 Author:              Csaba Hruska
-Maintainer:          csaba (dot) hruska (at) gmail (dot) com
+Maintainer:          csaba.hruska@gmail.com
 Stability:           Experimental
 Category:            Sound
-Tested-With:         GHC == 7.8.3
-Cabal-Version:       >= 1.2
+Tested-With:         GHC == 7.10.3
+Cabal-Version:       >= 1.6
 Build-Type:          Simple
 
 Extra-Source-Files:
@@ -39,6 +39,10 @@
   cbits/stb_vorbis.c
 
   Sound/ProteaAudio.chs
+
+source-repository head
+  type:     git
+  location: https://github.com/csabahruska/proteaaudio
 
 Library
   Build-Depends:        base >= 4 && < 5