Clarified remarks about memory usage, and zapped bits specifically about
resources required to compile GHC (this is not ANNOUNCE material).

remove unused import

remove unused imports

avoid some repetition of filenames in the primop rules.

build genprimopcode at boot time.

werid -> weird

make this compile with pre-4.09 GHCs.

Fix so that libHS_imp_stub is made before HSrts.dll.

Changed DLL_IMPORT_RTS to DLL_IMPORT (I had it the wrong way around).

Give the included bits of Haskell their own rules in the Makefile, so
that make boot/depend work properly.

Now Char, Char#, StgChar have 31 bits (physically 32).
"foo"# is still an array of bytes.

CharRep represents 32 bits (on a 64-bit arch too). There is also
Int8Rep, used in those places where bytes were originally meant.
readCharArray, indexCharOffAddr etc. still use bytes. Storable and
{I,M}Array use wide Chars.

In future perhaps all sized integers should be primitive types. Then
some usages of indexing primops scattered through the code could
be changed to then-available Int8 ones, and then Char variants of
primops could be made wide (other usages that handle text should use
conversion that will be provided later).

I/O and _ccall_ arguments assume ISO-8859-1. UTF-8 is internally used
for string literals (only).

Z-encoding is ready for Unicode identifiers.

Ranges of intlike and charlike closures are more easily configurable.

I've probably broken nativeGen/MachCode.lhs:chrCode for Alpha but I
don't know the Alpha assembler to fix it (what is zapnot?). Generally
I'm not sure if I've done the NCG changes right.

This commit breaks the binary compatibility (of course).

TODO:
* is* and to{Lower,Upper} in Char (in progress).
* Libraries for text conversion (in design / experiments),
  to be plugged to I/O and a higher level foreign library.
* PackedString.
* StringBuffer and accepting source in encodings other than ISO-8859-1.

Use \{ \} in regex instead of { } for literal { }.
Hope it should be OK in theory; needed in practice here.

Add COMPILING_STDLIB symbol analagous to COMPILING_RTS for the extern vars
in stgio.h.

Add gmp.h to boot target so that it gets copied during booting (otherwise
make boot breaks down).

Use $(MV) not mv.

This is the program which generates bits of primop-related Haskell
(and, soon, C) code from ghc/compiler/prelude/primops.txt.

Reorganise the way primops are done.  Most of the information about
primops, their types and relevant attributes is in prelude/primops.txt.
A supporting program in fptools/ghc/utils/genprimopcode reads this
file and generates various bits of code which are #include'd into
prelude/PrimOp.lhs.  Eventually this mechanism will be extended to
generate PrelGHC.hi and C code for primops in the bytecode evaluator.

Also, add a few primops for creating, reading and writing BCOs.

Fixed conversion of MachWord to MachInt for large literals. Although
completely untested, I believe this fixes bug #111021.

Replaced `catchIO justIoErrors' with `catchJust ioErrors'

Port to OpenBSD from Thomas Nordin.  Please merge with 4.08 (you'll also
need the new config.guess and config.sub from the previous commit).

Pulled in latest versions from autoconf 2.13.  Necessary for OpenBSD port.

wibble

Another attempt at getting the pipeline stuff right.  Fixed at least
one bug.

-split-objs is entirely reasonable in conjunction with -fasm

wibble

- Implement the mkdepend -X<dir> and --exclude-directory=<dir> options.
- some small cleanups

Removed isLocallyDefinedName test in isDllName, as SPJ's with SM's suggestion
that it's redundant.

The parser didn't properly check that the constructor in a data
declaration really are constructors (ie. begin with an upper case
character).  This patch fixes the problem.

bug reported by: Tim Giesler, a couple of weeks ago.

Update the documentation on the +RTS -C option, and remove the note
saying that it doesn't work.

Implement +RTS -C<n>, the context switch interval flag.  This was
previously advertised in the usage message, but there was a note in
the Users' Guide stating that it didn't work.  Anwyay, I'm going to
consider it a bug and backport to 4.08.1.

Add a cross-ref to the section on Packages from the mention of the
-package flag in the section on linking.

remove mkdependHS from the list of directories.

Remove the old mkdependHS cruft.

Assimilate mkdependHS into the driver, obsoleting the old Perl version.

The functionality is pretty much identical, except a few of the flags
accepted by the old version aren't implemented (--exclude-module,
--exclude-directory, --include-module).  If anyone needs these
options, please speak up.

Many fixes to DLLisation. These were previously covered up because code was
leaking into the import libraries for DLLs, so the fact that some symbols
were thought of as local rather than in another DLL wasn't a problem.

The main problems addressed by this commit are:

1. Fixes RTS symbols working properly when DLLised. They didn't before.
2. Uses NULL instead of stg_error_entry, because DLL entry points can't be
   used as static initialisers.
3. PrelGHC.hi-boot changed to be in package RTS, and export of PrelNum and
   PrelErr moved to PrelBase, so that references to primops & the like
   are cross-DLL as they should be.
4. Pass imports around as Modules rather than ModuleNames, so that
   ModuleInitLabels can be checked to see if they're in a DLL or not.

Now copied from ghc/rts/gmp.h

Allow GMP to be compiled as a DLL.

Simon's Marktoberdorf Commits

1.  Tidy up the renaming story for "system binders", such as
dictionary functions, default methods, constructor workers etc.  These
are now documented in HsDecls.  The main effect of the change, apart
from tidying up, is to make the *type-checker* (instead of the
renamer) generate names for dict-funs and default-methods.  This is
good because Sergei's generic-class stuff generates new classes at
typecheck time.


2.  Fix the CSE pass so it does not require the no-shadowing invariant.
Keith discovered that the simplifier occasionally returns a result
with shadowing.  After much fiddling around (which has improved the
code in the simplifier a bit) I found that it is nearly impossible to
arrange that it really does do no-shadowing.  So I gave up and fixed
the CSE pass (which is the only one to rely on it) instead.


3. Fix a performance bug in the simplifier.  The change is in
SimplUtils.interestingArg.  It computes whether an argment should 
be considered "interesting"; if a function is applied to an interesting
argument, we are more likely to inline that function.
Consider this case
	let x = 3 in f x
The 'x' argument was considered "uninteresting" for a silly reason.
Since x only occurs once, it was unconditionally substituted, but
interestingArg didn't take account of that case.  Now it does.

I also made interestingArg a bit more liberal.  Let's see if we
get too much inlining now.


4.  In the occurrence analyser, we were choosing a bad loop breaker.
Here's the comment that's now in OccurAnal.reOrderRec

    score ((bndr, rhs), _, _)
	| exprIsTrivial rhs 	   = 3	-- Practically certain to be inlined
		-- Used to have also: && not (isExportedId bndr)
		-- But I found this sometimes cost an extra iteration when we have
		--	rec { d = (a,b); a = ...df...; b = ...df...; df = d }
		-- where df is the exported dictionary. Then df makes a really
		-- bad choice for loop breaker

I also increased the score for bindings with a non-functional type, so that
dictionaries have a better chance of getting inlined early


5. Add a hash code to the InScopeSet (and make it properly abstract)
This should make uniqAway a lot more robust.  Simple experiments suggest
that uniqAway no longer gets into the long iteration chains that it used
to.


6.  Fix a bug in the inliner that made the simplifier tend to get into
a loop where it would keep iterating ("4 iterations, bailing out" message).
In SimplUtils.mkRhsTyLam we float bindings out past a big lambda, thus:
	x = /\ b -> let g = \x -> f x x
		    in E
becomes
	g* = /\a -> \x -> f x x
	x = /\ b -> let g = g* b in E
	
It's essential that we don't simply inling g* back into the RHS of g,
else we will be back to square 1.  The inliner is meant not to do this
because there's no benefit to the inlining, but the size calculation
was a little off in CoreUnfold.


7.  In SetLevels we were bogus-ly building a Subst with an empty in-scope
set, so a WARNING popped up when compiling some modules.  (knights/ChessSetList
was the example that tickled it.)  Now in fact the warning wasn't an error,
but the Right Thing to do is to carry down a proper Subst in SetLevels, so
that is what I have now done.  It is very little more expensive.

include GMP's configure files in a src dist.

x.yy.DDMMYYYY should be x.yy.YYYYMMDD for unstable snapshots.