Mesa (master): util: Defined M_SQRT2 when not available.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 52427f0ba703f933b70d669ae565c7aeb733236d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=52427f0ba703f933b70d669ae565c7aeb733236d

Author: José Fonseca <jfonseca at vmware.com>
Date:   Sat Oct  9 12:10:07 2010 +0100

util: Defined M_SQRT2 when not available.

---

 src/gallium/auxiliary/util/u_math.h |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 69a7681..37294b7 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -118,6 +118,11 @@ __inline double __cdecl atan2(double val)
 #endif
 
 
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880
+#endif
+
+
 #if defined(_MSC_VER) 
 
 #if _MSC_VER < 1400 && !defined(__cplusplus) || defined(PIPE_SUBSYSTEM_WINDOWS_CE)