Do not build MySQL Router.
It is a set of tools and libraries used for the InnoDB cluster.

However without MySQL Shell it can't be operated.
We don't pack the MySQL Shell, so don´t build the router at all.



I have this confirmed from the mail conversation with the MySQL side:
"While technically possible, it's practically impossible to set up router without the MySQL Shell."

--- mysql-8.0.13/CMakeLists.txt	2018-10-07 10:44:22.000000000 +0200
+++ mysql-8.0.13/CMakeLists.txt_patched	2018-10-23 03:10:01.490792624 +0200
@@ -1046,7 +1046,7 @@ CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/sql/s
 
 # depends on mysql_version.h to exist
 IF(NOT WITHOUT_SERVER)
-  ADD_SUBDIRECTORY(router)
+#  ADD_SUBDIRECTORY(router)
 ENDIF()
 
 GET_PROPERTY(CWD_DEFINITIONS DIRECTORY PROPERTY COMPILE_DEFINITIONS)