1 files changed, 27 insertions, 23 deletions

diff --git a/external/include/glm/gtx/spline.hpp b/external/include/glm/gtx/spline.hpp
index 333a5bc..f080fec 100644
--- a/external/include/glm/gtx/spline.hpp
+++ b/external/include/glm/gtx/spline.hpp
@@ -6,9 +6,9 @@
 /// @defgroup gtx_spline GLM_GTX_spline
 /// @ingroup gtx
 ///
-/// @brief Spline functions
+/// Include <glm/gtx/spline.hpp> to use the features of this extension.
 ///
-/// <glm/gtx/spline.hpp> need to be included to use these functionalities.
+/// Spline functions
 
 #pragma once
 
@@ -16,6 +16,10 @@
 #include "../glm.hpp"
 #include "../gtx/optimum_pow.hpp"
 
+#ifndef GLM_ENABLE_EXPERIMENTAL
+#	error "GLM: GLM_GTX_spline is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
+#endif
+
 #if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)
 #	pragma message("GLM: GLM_GTX_spline extension included")
 #endif
@@ -27,33 +31,33 @@ namespace glm
 
 	/// Return a point from a catmull rom curve.
 	/// @see gtx_spline extension.
-	template <typename genType> 
+	template<typename genType>
 	GLM_FUNC_DECL genType catmullRom(
-		genType const & v1, 
-		genType const & v2, 
-		genType const & v3, 
-		genType const & v4, 
-		typename genType::value_type const & s);
-		
+		genType const& v1,
+		genType const& v2,
+		genType const& v3,
+		genType const& v4,
+		typename genType::value_type const& s);
+
 	/// Return a point from a hermite curve.
 	/// @see gtx_spline extension.
-	template <typename genType> 
+	template<typename genType>
 	GLM_FUNC_DECL genType hermite(
-		genType const & v1, 
-		genType const & t1, 
-		genType const & v2, 
-		genType const & t2, 
-		typename genType::value_type const & s);
-		
-	/// Return a point from a cubic curve. 
+		genType const& v1,
+		genType const& t1,
+		genType const& v2,
+		genType const& t2,
+		typename genType::value_type const& s);
+
+	/// Return a point from a cubic curve.
 	/// @see gtx_spline extension.
-	template <typename genType> 
+	template<typename genType>
 	GLM_FUNC_DECL genType cubic(
-		genType const & v1, 
-		genType const & v2, 
-		genType const & v3, 
-		genType const & v4, 
-		typename genType::value_type const & s);
+		genType const& v1,
+		genType const& v2,
+		genType const& v3,
+		genType const& v4,
+		typename genType::value_type const& s);
 
 	/// @}
 }//namespace glm