[project @ 2004-09-03 15:28:18 by simonmar]
Cleanup: all (well, most) messages from the RTS now go through the functions in RtsUtils: barf(), debugBelch() and errorBelch(). The latter two were previously called belch() and prog_belch() respectively. See the comments for the right usage of these message functions. One reason for doing this is so that we can avoid spurious uses of stdout/stderr by Haskell apps on platforms where we shouldn't be using them (eg. non-console apps on Windows).
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