Added -fwarn-duplicate-exports option

Update information on Glasgow extensions and the associated libraries.
Pull in Alastair Reid's library document as a temporary measure: this
will be replaced by a link to the SGML version in the future.

literatize and add a few forgotten things.

add ST macros for GHC < 2.00.

Add test for "type constructor used as class name".

Don't try to generate stdout files if using -accept-output.  It didn't
work anyway: a call to pop had stomped on the variable containing the
filename before it was used, setting it to the empty string.  The call
to touch then failed with a syntax error.

This behaviour seems more useful: sometimes you really don't want to
check the stdout and/or stderr, so you just don't create the file.

Don't arbitrarily truncate function names.

Reasoning:
	* No information is lost - the output might be poorly
	  formatted if long cost centres are involved though.
	* If the user wants shorter cost centre names, explicit cost
	  centres can be inserted.

Don't arbitrarily truncate function names.

Reasoning:
	* If the function names are long, it just reduces the size of
	  the graph, no information is lost.
	* If the user wants shorter cost center names, explicit cost
	  centres can be inserted.

fix for "TyCon used as Class" bug.

change -i semantics to match GHC.

Add -fwarn-duplicate-exports to default warning set

Added items on new mkdependHS opts, duplicate exports warning

posix misspelled

Name of interface file is determined by name of Haskell module being compiled

If possible, catch error when opening files for writing to a dangling symlink

Up the default heap size to 8m for PrelTup, ArrBase, Time, Int and Word

COUNT_SPARK: accumulate sparksCreated

Only expose sparksIgnored and sparksCreated vars for GUM/GranSim

Mirror sequential code, push realWorld# on B-stack before entering IO action

Stack underflow comment added

RBH_entry: GranSim/GUM fix for invalid InfoPtr

Changed default for GranFlags.max_fishes to MAX_FISHES

GranSim msg fix

Add spark count to debug msg

Have conflictFM return Maybe type rather than list

Print out module name on entering unregistered CCs

ForeignObj debug output to stderr

import IOExts instead of IORef

Added Read BufferMode instance

Bogus workaround to get cygwin32-b18 apps using Time compile and link

Added compatibility stubs for ST and PrimIO operators

Added comment on Read BufferMode instance

Make monadic operators (>>) and (>>=) left-assoc (as per Report.)

Added IOExts.unsafePtrEq :: a -> a -> Bool

New macros added to cope with new defn of ST

-monly-3-regs needed to have these compile with post gcc-2.7.2 snapshots under cygwin32-b18

Fix to have _casm_gc_ cope with statement blocks; misc import mods to have modules compile with 2.09 (and later.)

fix to have it compile with 2.09 (and later)

Removed superflous uses of hGetContents in main