--- a/src/cmake/OptimalOptions.cmake
+++ b/src/cmake/OptimalOptions.cmake
@@ -31,6 +31,11 @@
 
 	ENDIF(NV_SYSTEM_PROCESSOR STREQUAL "powerpc")
 
+	IF(NV_SYSTEM_PROCESSOR STREQUAL "ppc64")
+		SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mcpu=power8 -maltivec -mabi=altivec -mpowerpc64 -mvsx")
+	ENDIF(NV_SYSTEM_PROCESSOR STREQUAL "ppc64")
+
+
 #	IF(DARWIN)
 #		SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mmacosx-version-min=10.5 -isysroot /Developer/SDKs/MacOSX10.5.sdk")
 #		SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.5 -isysroot /Developer/SDKs/MacOSX10.5.sdk")