[mercury-users] multiple main predicates

[Michael Day]

A module foo includes sub modules bar and meep, each of which are intended
to be separate programs and hence contain their own main predicates. foo
itself does not contain a main predicate.

This used to compile on 2002-05-12 although it generated errors about 
duplicate main predicates which went away if the build was repeated. 
However on 2002-07-09 the errors don't go away.

Is this really an error? It's handy to have sub modules be programs
sometimes.

Michael

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