Index: ps/trunk/source/graphics/tests/test_Camera.h
===================================================================
--- ps/trunk/source/graphics/tests/test_Camera.h	(revision 22320)
+++ ps/trunk/source/graphics/tests/test_Camera.h	(revision 22321)
@@ -1,93 +1,94 @@
 /* Copyright (C) 2019 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 2 of the License, or
  * (at your option) any later version.
  *
  * 0 A.D. is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "lib/self_test.h"
 
 #include "graphics/Camera.h"
 #include "maths/MathUtil.h"
 #include "maths/Vector3D.h"
 
+#include <cmath>
 #include <vector>
 
 class TestCamera : public CxxTest::TestSuite
 {
 public:
 	void test_frustum_perspective()
 	{
 		SViewPort viewPort;
 		viewPort.m_X = 0;
 		viewPort.m_Y = 0;
 		viewPort.m_Width = 512;
 		viewPort.m_Height = 512;
 
 		CCamera camera;
 		camera.SetViewPort(viewPort);
 		camera.LookAlong(
 			CVector3D(0.0f, 0.0f, 0.0f),
 			CVector3D(0.0f, 0.0f, 1.0f),
 			CVector3D(0.0f, 1.0f, 0.0f)
 		);
 		camera.SetProjection(1.0f, 101.0f, DEGTORAD(90.0f));
 		camera.UpdateFrustum();
 
 		const float sqrt2 = sqrtf(2.0f) / 2.0f;
 		const std::vector<CPlane> expectedPlanes = {
 			CVector4D(sqrt2, 0.0f, sqrt2, 0.0f),
 			CVector4D(-sqrt2, 0.0f, sqrt2, 0.0f),
 			CVector4D(0.0f, sqrt2, sqrt2, 0.0f),
 			CVector4D(0.0f, -sqrt2, sqrt2, 0.0f),
 			CVector4D(0.0f, 0.0f, -1.0f, 101.0f),
 			CVector4D(0.0f, 0.0f, 1.0f, -1.0f),
 		};
 		CheckFrustumPlanes(camera.GetFrustum(), expectedPlanes);
 	}
 
 	// Order of planes is unknown. So use interactive checker.
 	void CheckFrustumPlanes(const CFrustum& frustum, const std::vector<CPlane>& expectedPlanes)
 	{
 		TS_ASSERT_EQUALS(frustum.GetNumPlanes(), expectedPlanes.size());
 		std::set<size_t> indices;
 		for (size_t i = 0; i < expectedPlanes.size(); ++i)
 			indices.insert(i);
 
 		for (size_t i = 0; i < frustum.GetNumPlanes(); ++i)
 		{
 			bool found = false;
 			for (size_t j : indices)
 			{
 				if (EqualPlanes(frustum[i], expectedPlanes[j]))
 				{
 					found = true;
 					indices.erase(j);
 					break;
 				}
 			}
 			TS_ASSERT(found);
 		}
 	}
 
 	bool EqualPlanes(const CPlane& p1, const CPlane& p2) const
 	{
 		const float EPS = 1e-3f;
-		if (std::fabsf(p1.m_Dist - p2.m_Dist) >= EPS)
+		if (std::fabs(p1.m_Dist - p2.m_Dist) >= EPS)
 			return false;
 		return
-			std::fabsf(p1.m_Norm.X - p2.m_Norm.X) < EPS &&
-			std::fabsf(p1.m_Norm.Y - p2.m_Norm.Y) < EPS &&
-			std::fabsf(p1.m_Norm.Z - p2.m_Norm.Z) < EPS;
+			std::fabs(p1.m_Norm.X - p2.m_Norm.X) < EPS &&
+			std::fabs(p1.m_Norm.Y - p2.m_Norm.Y) < EPS &&
+			std::fabs(p1.m_Norm.Z - p2.m_Norm.Z) < EPS;
 	}
 };