MDEV-255: Compile handlersocket plugin in 5.5

plugin/handler_socket/CMakeLists.txt

+
+IF(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
+  # Handlersocket does not compile on Windows, compiles but does 
+  # not start on FreeBSD.  
+  RETURN()
+ENDIF()
+
+#Remove -fno-implicit-templates from compiler flags(handlersocket would not work  with  it)
+IF(CMAKE_COMPILER_IS_GNUCXX)
+  STRING(REPLACE "-fno-implicit-templates" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
+ENDIF()
+
+INCLUDE_DIRECTORIES(libhsclient)
+
+# Handlersocket client library. We do not distribute it, 
+# it is just compiled in.
+SET(LIBHSCLIENT_SOURCES
+  libhsclient/config.cpp 
+  libhsclient/escape.cpp 
+  libhsclient/fatal.cpp 
+  libhsclient/hstcpcli.cpp 
+  libhsclient/socket.cpp 
+  libhsclient/string_util.cpp
+)
+ADD_CONVENIENCE_LIBRARY(hsclient  ${LIBHSCLIENT_SOURCES})
+# Solaris needs to link some network libraries
+TARGET_LINK_LIBRARIES(hsclient ${LIBSOCKET} ${LIBNLS} ${LIBBIND})
+
+# handlersocket daemon plugin itself.
+SET(HANDLERSOCKET_SOURCES
+  handlersocket/database.cpp
+  handlersocket/handlersocket.cpp
+  handlersocket/hstcpsvr_worker.cpp 
+  handlersocket/hstcpsvr.cpp
+)
+MYSQL_ADD_PLUGIN(handlersocket 
+  ${HANDLERSOCKET_SOURCES} 
+  MODULE_ONLY  COMPONENT Server
+  LINK_LIBRARIES  hsclient
+)
+

plugin/handler_socket/handlersocket/mysql_incl.hpp

@@ -13,7 +13,10 @@
 #define HAVE_CONFIG_H
 #endif
 
+#ifndef MYSQL_DYNAMIC_PLUGIN
 #define MYSQL_DYNAMIC_PLUGIN
+#endif
+
 #define MYSQL_SERVER 1
 
 #include <my_config.h>