[mlpack] 05/207: moved cmath include for appveyor

[Barak A. Pearlmutter]

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bap pushed a commit to branch master
in repository mlpack.

commit 1f9718ff71eb78fd033ed44eb9d52c766ed1dbaf
Author: Mike Izbicki <mike at izbicki.me>
Date:   Fri Dec 23 13:12:10 2016 -0800

    moved cmath include for appveyor
---
 src/mlpack/prereqs.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mlpack/prereqs.hpp b/src/mlpack/prereqs.hpp
index 01ac0ff..8ea52ed 100644
--- a/src/mlpack/prereqs.hpp
+++ b/src/mlpack/prereqs.hpp
@@ -11,6 +11,10 @@
 #ifndef MLPACK_PREREQS_HPP
 #define MLPACK_PREREQS_HPP
 
+// Defining _USE_MATH_DEFINES should set M_PI.
+#define _USE_MATH_DEFINES
+#include <cmath>
+
 // First, check if Armadillo was included before, warning if so.
 #ifdef ARMA_INCLUDES
 #pragma message "Armadillo was included before mlpack; this can sometimes cause\

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