From 6ba27de30530a31eb86036d5fd6a79c1e19cca20 Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <jakob@collabora.com>
Date: Tue, 30 Mar 2021 19:48:01 +0100
Subject: [PATCH] m/mathinclude: Apperently _USE_MATH_DEFINES was not enough

---
 src/xrt/auxiliary/math/m_mathinclude.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/xrt/auxiliary/math/m_mathinclude.h b/src/xrt/auxiliary/math/m_mathinclude.h
index 81c3c5a0e..dd51120e4 100644
--- a/src/xrt/auxiliary/math/m_mathinclude.h
+++ b/src/xrt/auxiliary/math/m_mathinclude.h
@@ -21,6 +21,17 @@
 #include <math.h>
 #endif
 
+
+// Might be missing on Windows.
+#ifndef M_PI
+#define M_PI (3.14159265358979323846)
+#endif
+
+// Might be missing on Windows.
+#ifndef M_PIl
+#define M_PIl (3.14159265358979323846264338327950288)
+#endif
+
 #ifndef M_1_PI
 #define M_1_PI (1. / M_PI)
 #endif