remove Ptr64Bits compilation flag from CMake

CMakeLists.txt

@@ -112,12 +112,12 @@ if(TRUE)#NOT ${WIN32})
     message( STATUS "System appears to be little endian.")
     add_compile_options(-DLittleEndian)
   endif()
-  include(CheckTypeSize)
+#  include(CheckTypeSize)
-  CHECK_TYPE_SIZE("void *" VOID_P_SIZE LANGUAGE C)
+#  CHECK_TYPE_SIZE("void *" VOID_P_SIZE LANGUAGE C)
-  if(${VOID_P_SIZE} EQUAL 8)
+#  if(${VOID_P_SIZE} EQUAL 8)
-    add_compile_options(-DPtr64Bits)
+#    add_compile_options(-DPtr64Bits)
-  endif()
+#  endif()
-  message(STATUS "Have 64bit pointers")
+#  message(STATUS "Have 64bit pointers")
  
   
 endif()