BUG#28860 USE_TLS not defined for mysqlclient.lib

client/CMakeLists.txt:
  Bug#28860 Define USE_TLS for mysqlclient.lib

client/CMakeLists.txt

@@ -20,6 +20,10 @@ SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -DSAFEMALLOC -DSAFE_MUTEX")
 # The old Windows build method used renamed (.cc -> .cpp) source files, fails
 # in #include in mysqlbinlog.cc. So disable that using the USING_CMAKE define.
 ADD_DEFINITIONS(-DUSING_CMAKE)
+
+# USE_TLS needed because of bug#28860
+ADD_DEFINITIONS(-DUSE_TLS)
+
 INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include 
                     ${CMAKE_SOURCE_DIR}/zlib 
                     ${CMAKE_SOURCE_DIR}/extra/yassl/include