From 4dc66a385eb054dd81d5c84495dfab404834366b Mon Sep 17 00:00:00 2001
From: Erik Hofman <erik@ehofman.com>
Date: Mon, 21 Nov 2016 09:22:09 +0100
Subject: [PATCH] Include SGMathFwd.hxx to add unknown math types

---
 simgear/math/test_sgvec4.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/simgear/math/test_sgvec4.cxx b/simgear/math/test_sgvec4.cxx
index 0ae13f82..d0eddc87 100644
--- a/simgear/math/test_sgvec4.cxx
+++ b/simgear/math/test_sgvec4.cxx
@@ -3,6 +3,7 @@
 #include <cmath>
 #include <cfloat>
 
+#include "SGMathFwd.hxx"
 #include "SGVec4.hxx"
 
 // set to 0 for a timing test