module conflict statement

[Roberto B. <Rob...@ge...>]

Hi,
	i have a hopefully simple question regarding modules due to the fact i
do not know tcl...

In module there is an option called conflict to be used to catch conflicts
between already loaded modulefiles.
I have to set up modulefiles for two different versions of software so i have
something like:
Software/verA (default) and Software/verB
now in hte modulefiles i put the command conflict Software and if i load a
version once anotherone is already loaded modules dumps an Error stating this
fact (plus some other info) and exits.
My question is the following:
How do i catch the error message and instead of exiting dump something nice to
stderr or even better automatically unload the other version and load the
correct one telling the user i have done so?
Tcl provides catch but i was not able to use it... :(

In general how do i manage the errors eventualy produced by module?
The only way i found is to turn off error writing but then one does not even
know that there has been an error...
There must be something simple in order to deal with this "problem".

Thanks in advance for the answers

	Roberto
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