From f1c4b2dbed0e82ba67604ca2a1fb2079d01224ec Mon Sep 17 00:00:00 2001
From: Yann Pomarede <yann.pomarede@gmail.com>
Date: Tue, 28 Feb 2017 12:03:37 +0100
Subject: [PATCH] FFTConvolver needs C++11 and -O2 divides by 3 CPU usage on a
 Raspberry Pi.

---
 Makefile.am | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile.am b/Makefile.am
index a2f973d0..63b12b92 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -57,6 +57,7 @@ endif
 
 if USE_CONVOLUTION
 shairport_sync_SOURCES += FFTConvolver/AudioFFT.cpp FFTConvolver/FFTConvolver.cpp FFTConvolver/Utilities.cpp FFTConvolver/convolver.cpp
+AM_CXXFLAGS = -std=c++11 -O2
 endif
 
 if USE_DNS_SD