From a4f88cd6c30f5815a6bd552b5e6ebde6b7884dd0 Mon Sep 17 00:00:00 2001
From: Fabien Castan <fabcastan@gmail.com>
Date: Fri, 24 Jul 2020 15:16:33 +0200
Subject: [PATCH] [numeric] eigen alignment is not supported for now

So ensure that we are building with the right flags
---
 src/aliceVision/numeric/numeric.hpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/aliceVision/numeric/numeric.hpp b/src/aliceVision/numeric/numeric.hpp
index 06ec248843..214805ad86 100644
--- a/src/aliceVision/numeric/numeric.hpp
+++ b/src/aliceVision/numeric/numeric.hpp
@@ -8,6 +8,21 @@
 
 #pragma once
 
+// AliceVision does not support Eigen with alignment,
+// So ensure Eigen is used with the correct flags.
+#ifndef EIGEN_MAX_ALIGN_BYTES
+#error "EIGEN_MAX_ALIGN_BYTES is not defined"
+#elif EIGEN_MAX_ALIGN_BYTES != 0
+#error "EIGEN_MAX_ALIGN_BYTES is defined but not 0"
+#endif
+
+#ifndef EIGEN_MAX_STATIC_ALIGN_BYTES
+#error "EIGEN_MAX_STATIC_ALIGN_BYTES is not defined"
+#elif EIGEN_MAX_STATIC_ALIGN_BYTES != 0
+#error "EIGEN_MAX_STATIC_ALIGN_BYTES is defined but not 0"
+#endif
+
+
 //--
 // Eigen
 // http://eigen.tuxfamily.org/dox-devel/QuickRefPage.html