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-rw-r--r--al/effects/convolution.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/al/effects/convolution.cpp b/al/effects/convolution.cpp
index 3e7885f8..9c091e53 100644
--- a/al/effects/convolution.cpp
+++ b/al/effects/convolution.cpp
@@ -1,6 +1,8 @@
#include "config.h"
+#include <cmath>
+
#include "AL/al.h"
#include "alc/inprogext.h"