deb rpm: link with libmysqlsevices for MySQL 5.6

Makefile.am

@@ -11,7 +11,11 @@ libraries =					\
 	$(top_builddir)/lib/libmrn_no_mysql.la	\
 	$(top_builddir)/lib/libmrn_need_mysql.la
 
+if WITH_LIBMYSQLSERVICES
 dynamic_plugin_ldflags  = -module $(GROONGA_LIBS) -L$(plugindir)/.. -lmysqlservices
+else
+dynamic_plugin_ldflags  = -module $(GROONGA_LIBS) -L$(plugindir)/..
+endif
 dynamic_plugin_cxxflags = $(AM_CXXFLAGS) $(MYSQL_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN
 dynamic_plugin_cflags   = $(AM_CFLAGS) $(MYSQL_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN
 

configure.ac

@@ -168,6 +168,16 @@ AC_DEFUN([CONFIG_OPTION_MYSQL],[
   MYSQL_CFLAGS="$MYSQL_CFLAGS $($ac_mysql_config --cflags)"
   MYSQL_INCLUDES="$MYSQL_INCLUDES $($ac_mysql_config --include)"
   MYSQL_VERSION="$($ac_mysql_config --version)"
+  MYSQL_MAJOR_MINOR_VERSION=`echo $MYSQL_VERSION | sed -r 's/([0-9]+)\.([0-9]+)\.([0-9]+)$/\1.\2/'`
+  case "$MYSQL_MAJOR_MINOR_VERSION" in
+  5.6*)
+      USE_LIBMYSQLSERVICES="yes"
+      ;;
+  *)
+      USE_LIBMYSQLSERVICES="no"
+      ;;
+  esac
+  AM_CONDITIONAL([WITH_LIBMYSQLSERVICES], [test "${USE_LIBMYSQLSERVICES}" != "no"])
 ])
 
 m4_define([mrn_required_groonga_version], m4_include(required_groonga_version))