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GHC now warns of possibly-incomplete patterns in case expressions
and function bindings. You can suppress these warnings with `-fno-warn-incomplete-patterns'.
GHC also warns of completely overlapped patterns. You can't switch this off.
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GHC can warn of shadowed names, though it does not do so by default.
Just occasionally this shows up
an otherwise hard-to-find bug. To warn of shadowed names use `-fwarn-name-shadowing'
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You can now generate `make' dependencies via the compiler
driver, use the option `-M' together with the list source files to compute
the dependencies for. By default, the dependencies will be appended to
the file `Makefile' in the current directory.
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For hackers, the flag `-dshow-rn-trace' shows what the renamer is up to.
Sit back and marvel.
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