From 3cf273591a17d5a7ba1b3a5552f580aaec189d5b Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 8 Oct 2019 08:58:35 +0200
Subject: [PATCH] Fix compilation of FFTW unit test (grafted from
 7a43af1a335da2c0489b4119a33ee1cbff0c15d6 )

---
 unsupported/test/FFTW.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/unsupported/test/FFTW.cpp b/unsupported/test/FFTW.cpp
index 8b7528fb7..1f3e6b890 100644
--- a/unsupported/test/FFTW.cpp
+++ b/unsupported/test/FFTW.cpp
@@ -8,6 +8,7 @@
 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 #include "main.h"
+#include <cstdint>
 #include <unsupported/Eigen/FFT>
 
 template <typename T>