The etc class is the simplest directory class. Source files are
simply copied to the etc sub-directory of $AST_ROOT/$SYSTEM
in the build phase, and $INSTALL/etc/asterix in the install phase.
Often the files which are specified by the etc directory are
calibration files, which are perhaps computed by some application or
supplied by an external agency. Each such file should have a subdirectory
containing either the code required to make the file or relevant
documentation. This directory
is not part of the system as far as building and installing is
concerned, and is ignored by the mk system. An example of this
is the ASCA SIS psf calibration, which lives in kernel/etc.
A subdirectory called SISpsfGenerator exists which contains
the code which makes this file.
The only mandatory token required by the etc class make file
is one called ETC_FILES. You can list all the files under this token
or you can split them, which is neater. For example,
files BITMAPS marilyn.xbm pamella.xbm claudia.xbm files COLTABS mary.sdf mungo.sdf midge.sdf # # The mandatory token # files ETC_FILES :BITMAPS: :COLTABS: