installation requirements

[Ted S. <st...@cr...>]

Hello Environment Modules people --

I'm one of the people keeping tabs on the CVS state of modules development.
As has long been Cray practice, we intend to continue using environment
modules to help organize the programming environment for users and developers.
Not only that, we would like to have pretty much the same kind of modules
interface on all of our platforms.  But this brings up a few questions about
installation prerequisites in recent versions of modules.

It appears that the modules package depends on X libraries.  What specific
part of the package requires this?  X is a pretty big thing to depend on,
especially for supercomputers that would not primarily be used for X
applications.

Tcl dependency:  Is there a minimal prerequisite subset of Tcl for modules?
It seems like it would be more efficient to require only the locations of
the static libtcl.a library or equivalent, and the location of the init.tcl
file.  And since the init.tcl file is not only a prerequisite but a run-time
requirement, perhaps an example modulefile that sets modules-specific
environment variables pointing to the init.tcl file should be provided.

Sorry if these questions appear naive, I come to this from the user, not
the OS, side of the house.

-- 
 Ted Stern                                          Engineering Applications
 Cray Inc.                                               http://www.cray.com
 411 First Avenue South, Suite 600    Direct 206-701-2182, Main 206-701-2000
 Seattle, WA 98104-2860                                    FAX  206-701-2500