To ease upkeep of non-branch-specific files, we keep them in the workbook. Also, there are some scripts that are useful only to Guile maintainers. The directories for the workbook and maintainer scripts are represented by vars `workbook' and `mscripts' respectively. These can be made available (when configured w/ "--enable-maintainer-mode") by adding the line: include $(top_srcdir)/am/maintainer-dirs to a particular Makefile.am. At this time both dirs are expected as siblings to guile-core (supported by the standard "cvs co hack").