Demos (cmake): cmake: Enable math constant defines on MSVC.

[Jose Fonseca]

Module: Demos
Branch: cmake
Commit: 6620349197f36506183bbf956bbc95330b77fc62
URL:    http://cgit.freedesktop.org/mesa/demos/commit/?id=6620349197f36506183bbf956bbc95330b77fc62

Author: José Fonseca <jfonseca at vmware.com>
Date:   Tue Nov  9 16:18:29 2010 +0000

cmake: Enable math constant defines on MSVC.

---

 CMakeLists.txt |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 386c8e0..cd84233 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,6 +38,9 @@ if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
 endif (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
 
 if (MSVC)
+	# Enable math constants defines
+	add_definitions (-D_USE_MATH_DEFINES)
+
 	# Silence several MSVC pedantic warnings
 	add_definitions (-D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS)
 	add_definitions (-D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS)