Added a README file regarding WinRT support

To note, this file is currently formatted with CRLF line endings, rather than
LF, to allow the file to be viewed with Notepad.

src/libm/math_libm.h

@@ -0,0 +1,37 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../SDL_internal.h"
+
+/* Math routines from uClibc: http://www.uclibc.org */
+
+double SDL_uclibc_atan(double x);
+double SDL_uclibc_atan2(double y, double x);    
+double SDL_uclibc_copysign(double x, double y);       
+double SDL_uclibc_cos(double x);         
+double SDL_uclibc_fabs(double x);        
+double SDL_uclibc_floor(double x);
+double SDL_uclibc_log(double x);
+double SDL_uclibc_pow(double x, double y);    
+double SDL_uclibc_scalbn(double x, int n);
+double SDL_uclibc_sin(double x);
+double SDL_uclibc_sqrt(double x);
+
+/* vi: set ts=4 sw=4 expandtab: */