From 8f3daa3e2f42da8de7279fb875fc4813ae99f82c Mon Sep 17 00:00:00 2001
From: Jamie Bullock <jamie@jamiebullock.com>
Date: Thu, 13 Nov 2014 15:16:19 +0000
Subject: Raise a preprocessor error if neither __APPLE__ nor USE_OOURA is
 defined

---
 src/fft.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/fft.h b/src/fft.h
index 20fedcd..d05cd7e 100644
--- a/src/fft.h
+++ b/src/fft.h
@@ -37,6 +37,9 @@
 #ifdef USE_OOURA
 #include "ooura/fftsg.h"
 #else
+        #ifndef __APPLE__
+                #error "The target platform is not an Apple one and USE_OOURA was not defined"
+        #endif
 #include <Accelerate/Accelerate.h>
 #endif
 
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