Index: audio/sayonara/files/patch-src_Components_Engine_AbstractEngine.cpp
===================================================================
--- /dev/null
+++ audio/sayonara/files/patch-src_Components_Engine_AbstractEngine.cpp
@@ -0,0 +1,13 @@
+Missing include needed for std::abs; this caused a build error on 10.3 i386.
+
+--- src/Components/Engine/AbstractEngine.cpp.orig	2017-12-31 13:34:19 UTC
++++ src/Components/Engine/AbstractEngine.cpp
+@@ -29,6 +29,8 @@
+ 
+ #include <gst/gst.h>
+ 
++#include <cstdlib>
++
+ using Engine::Base;
+ 
+ struct Base::Private