use a better compiler name

Templates/CMakeWindowsSystemConfig.cmake

@@ -6,7 +6,7 @@ SET (HAVE_LIMITS_H   1)
 
 SET (HAVE_UNISTD_H   1)
 
-SET (CMAKE_CXX_COMPILER  VC++60 CACHE STRING 
+SET (CMAKE_CXX_COMPILER  cl CACHE STRING 
      "Name of C++ compiler used.")
 
 SET (CMAKE_CXX_FLAGS_RELEASE "/MD /O2" CACHE STRING