diff --git a/NEWS b/NEWS
index e1a0a770a..d7c188ba0 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,11 @@ ver 0.21 (not yet released)
 * output
   - alsa: non-blocking mode
 
+ver 0.20.8 (not yet released)
+* output
+  - osx: fix build failure due to missing "noexcept"
+* fix build failure with GCC 4.x
+
 ver 0.20.7 (2017/05/15)
 * database
   - simple: fix false positive directory loop detection with NFS
diff --git a/python/build/libs.py b/python/build/libs.py
index 7db98bed4..caf922ffb 100644
--- a/python/build/libs.py
+++ b/python/build/libs.py
@@ -58,8 +58,8 @@ libmad = AutotoolsProject(
 )
 
 ffmpeg = FfmpegProject(
-    'http://ffmpeg.org/releases/ffmpeg-3.3.tar.xz',
-    '599e7f7c017221c22011c4037b88bdcd1c47cd40c1e466838bc3c465f3e9569d',
+    'http://ffmpeg.org/releases/ffmpeg-3.3.1.tar.xz',
+    'b702a7fc656ac23e276b8c823a2f646e4e6f6309bb2788435a708e69bea98f2f',
     'lib/libavcodec.a',
     [
         '--disable-shared', '--enable-static',
diff --git a/src/Main.cxx b/src/Main.cxx
index 7a5e8cc62..33984bc4d 100644
--- a/src/Main.cxx
+++ b/src/Main.cxx
@@ -120,8 +120,16 @@ static constexpr size_t KILOBYTE = 1024;
 static constexpr size_t MEGABYTE = 1024 * KILOBYTE;
 
 static constexpr size_t DEFAULT_BUFFER_SIZE = 4 * MEGABYTE;
-static constexpr size_t MIN_BUFFER_SIZE = std::max(CHUNK_SIZE * 32,
-						   64 * KILOBYTE);
+
+static
+#if GCC_OLDER_THAN(5,0)
+/* gcc 4.x has no "constexpr" for std::max() */
+const
+#else
+constexpr
+#endif
+size_t MIN_BUFFER_SIZE = std::max(CHUNK_SIZE * 32,
+				  64 * KILOBYTE);
 
 static constexpr unsigned DEFAULT_BUFFER_BEFORE_PLAY = 10;
 
diff --git a/src/output/plugins/HaikuOutputPlugin.cxx b/src/output/plugins/HaikuOutputPlugin.cxx
index b8353db9b..ecf37c897 100644
--- a/src/output/plugins/HaikuOutputPlugin.cxx
+++ b/src/output/plugins/HaikuOutputPlugin.cxx
@@ -81,7 +81,7 @@ public:
 	size_t Play(const void *chunk, size_t size);
 	void Cancel();
 
-	std::chrono::steady_clock::duration Delay();
+	std::chrono::steady_clock::duration Delay() noexcept;
 
 	void FillBuffer(void* _buffer, size_t size,
 		gcc_unused const media_raw_audio_format& _format);
@@ -311,7 +311,7 @@ HaikuOutput::Play(const void *chunk, size_t size)
 }
 
 inline std::chrono::steady_clock::duration
-HaikuOutput::Delay()
+HaikuOutput::Delay() noexcept
 {
 	unsigned delay = buffer_filled ? 0 : buffer_delay;
 
diff --git a/src/output/plugins/OSXOutputPlugin.cxx b/src/output/plugins/OSXOutputPlugin.cxx
index 3e97aa132..c68deb88b 100644
--- a/src/output/plugins/OSXOutputPlugin.cxx
+++ b/src/output/plugins/OSXOutputPlugin.cxx
@@ -670,7 +670,7 @@ osx_output_play(AudioOutput *ao, const void *chunk, size_t size)
 }
 
 static std::chrono::steady_clock::duration
-osx_output_delay(AudioOutput *ao)
+osx_output_delay(AudioOutput *ao) noexcept
 {
 	OSXOutput *od = (OSXOutput *)ao;
 	return od->ring_buffer->write_available()
diff --git a/src/output/plugins/PulseOutputPlugin.cxx b/src/output/plugins/PulseOutputPlugin.cxx
index b2fb06d6b..79d7f2ba8 100644
--- a/src/output/plugins/PulseOutputPlugin.cxx
+++ b/src/output/plugins/PulseOutputPlugin.cxx
@@ -101,7 +101,7 @@ public:
 	void Open(AudioFormat &audio_format);
 	void Close();
 
-	std::chrono::steady_clock::duration Delay();
+	std::chrono::steady_clock::duration Delay() noexcept;
 	size_t Play(const void *chunk, size_t size);
 	void Cancel();
 	bool Pause();
@@ -741,7 +741,7 @@ PulseOutput::StreamPause(bool pause)
 }
 
 inline std::chrono::steady_clock::duration
-PulseOutput::Delay()
+PulseOutput::Delay() noexcept
 {
 	Pulse::LockGuard lock(mainloop);
 
diff --git a/src/output/plugins/sles/SlesOutputPlugin.cxx b/src/output/plugins/sles/SlesOutputPlugin.cxx
index 96ed6a66d..3103bea42 100644
--- a/src/output/plugins/sles/SlesOutputPlugin.cxx
+++ b/src/output/plugins/sles/SlesOutputPlugin.cxx
@@ -98,7 +98,7 @@ public:
 	void Open(AudioFormat &audio_format);
 	void Close();
 
-	std::chrono::steady_clock::duration Delay() {
+	std::chrono::steady_clock::duration Delay() noexcept {
 		return pause && !cancel
 			? std::chrono::milliseconds(100)
 			: std::chrono::steady_clock::duration::zero();