#include for M_PI.

diff --git a/src/lib/audio_filter.cc b/src/lib/audio_filter.cc
index b3916d9bd86c2bb5a2a0fd0aae483d07ef936555..3d3ecdfbb3deed7bfef315818646ffaf12e0dac3 100644 (file)
--- a/src/lib/audio_filter.cc
+++ b/src/lib/audio_filter.cc
@@ -20,6 +20,7 @@
 
 #include "audio_filter.h"
 #include "audio_buffers.h"
+#include "util.h"
 #include <cmath>
 
 using std::min;