GHC 6.4 release candidates available

John Meacham john at
Sat Feb 12 02:31:52 EST 2005

On Fri, Feb 11, 2005 at 10:49:56AM -0000, Simon Marlow wrote:
> GHC has warned you about a module clash, for which you should be
> grateful :-)  This could have lead to strange link-time errors, or even
> crashes, if you had used a library module which depended on the other
> PackedString.
> The golden rule is (from the new section on packages in the GHC User's
> Guide):
>   There must be no overlaps in the modules provided by all of the
> exposed
>   packages, and the packages they depend on, and so on.
> PackedString (not Data.PackedString) is indeed a member of the lang-1.0
> package.  This normally wouldn't be a problem, because lang is hiden.
> However, if lang is a dependency of some other exposed package, then it
> becomes part of your program, and hence its modules cannot overlap with
> any others.  What other packages are you using?

Ah, changing some code to use the hierarchical libraries and getting rid
of my other package imports seems to have fixed things. cool. Does this
mean I have been getting silent brokeness in the past due to the nameing

John Meacham - ⑆⑆john⑈ 

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