[Hat] set Prelude modules as untrusted

[Bernard Pope]

On Wed, 2005-07-13 at 09:56 +0100, Malcolm Wallace wrote:
> Kate Krastev <kate at ics.mq.edu.au> writes:
> 
> > Is it possible to set all/some Prelude modules to untrusted in Hat?
> > (So I can see exactly what calls what)
> 
> In src/hatlib/Makefile, search for occurrences of the flag '-trusted'
> and delete them.  Then you need to recompile the Hat prelude and
> libraries from scratch (make clean; make hat-lib) and re-install.

If you don't call too many Prelude functions then a _possibly_ cheaper
solution is to just duplicate the code for Prelude functions which
you /do/ use. Put them in some dummy module if necessary and import them
instead (maybe hiding the Prelude imports if you don't want to rename
them).

This gets a bit messy (nigh impossible) when you want to see calls made
to derived instances of type classes, but you may not need that level of
sophistication.

Cheers,
Bernie.