I just went through an interesting (== painful) remote debugging
session with one of my clients which could be avoided by improving
an error message.
If you compile a program for profiling but don't have profiling
versions of the standard libraries, then the linker generates reports
like:
ghc-5.04.1: can't find module `List' (while processing "./../Flattener.hs")
This is utterly baffling since:
1) It is unthinkable that a standard GHC installation would lack 'List'
2) The code compiles fine on other machines (which I later realised
had the profiling libs installed).
A much better error message would be:
ghc-5.04.1: can't find profiling version of module `List' (while ...)
^^^^^^^^^^^^^^^^^^^^
I leave it to you whether it would add these extra words only if it
had an ordinary version of List.
--
Alastair Reid [EMAIL PROTECTED]
Reid Consulting (UK) Limited http://www.reid-consulting-uk.ltd.uk/alastair/
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