SCons Targets--------------
The following targets can be named on the scons command line to buildonly certain components:
* `install-mongod`* `install-mongos`* `install-servers` (includes `mongod` and `mongos`)* `install-core` (includes `mongod` and `mongos`)* `install-devcore` (includes `mongod`, `mongos`, and `jstestshell` (formerly mongo shell))* `install-all`