[Beignet] [PATCH V2] disable CMRT as default, since no real case reported

[Guo, Yejun]

and this feature also sometimes introduces build issue.

v2: add option INVOKE_CMRT to enable CMRT if necessary
Signed-off-by: Guo, Yejun <yejun.guo at intel.com>
---
 CMakeLists.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 713cfa9..503c609 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,10 +176,14 @@ ELSE(DRM_INTEL_FOUND)
 ENDIF(DRM_INTEL_FOUND)
 
 # CMRT
+#disable CMRT as default, since we do not see real case,
+#but see build issue of this feature
+IF(INVOKE_CMRT)
 pkg_check_modules(CMRT libcmrt)
 IF(CMRT_FOUND)
 INCLUDE_DIRECTORIES(${CMRT_INCLUDE_DIRS})
 ENDIF(CMRT_FOUND)
+ENDIF(INVOKE_CMRT)
 
 # Threads
 Find_Package(Threads)
-- 
1.9.1