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Typo in windows-specific code

XMLification

-------------------------------
	Add instance information to :i
 	Get rid of the DeclPool
	-------------------------------


1.  Add instance information to :info command.  GHCi now prints out
    which instances a type or class belongs to, when you use :i

2.  Tidy up printing of unqualified names in user output.
    Previously Outputable.PrintUnqualified was
	type PrintUnqualified = Name -> Bool
    but it's now
	type PrintUnqualified = ModuleName -> OccName -> Bool
    This turns out to be tidier even for Names, and it's now also usable
    when printing IfaceSyn stuff in GHCi, eliminating a grevious hack.

3.  On the way to doing this, Simon M had the great idea that we could
    get rid of the DeclPool holding pen, which held declarations read from
    interface files but not yet type-checked.   We do this by eagerly
    populating the TypeEnv with thunks what, when poked, do the type
    checking.   This is just a logical continuation of lazy import
    mechanism we've now had for some while.

The InstPool and RulePool still exist, but I plan to get rid of them in
the same way.  The new scheme does mean that more rules get sucked in than
before, because previously the TypeEnv was used to mean "this thing was needed"
and hence to control which rules were sucked in.  But now the TypeEnv is
populated more eagerly => more rules get sucked in.  However this problem
will go away when I get rid of the Inst and Rule pools.

I should have kept these changes separate, but I didn't.  Change (1)
affects mainly
	TcRnDriver, HscMain, CompMan, InteractiveUI
whereas change (3) is more wide ranging.

stg_interp_constr_entry and friends don't have info tables, so declare
them using RTS_FUN() rather than RTS_ENTRY().

Avoid casting lvalues; gcc 3.4 issues warnings for it.

Define <arch>_TARGET_ARCH and <os>_TARGET_OS by default when CPP'ing.
This avoids the main reason for needing to #include config.h into
Haskell source, so most files that previously just #include "config.h" can now

  #if __GLASGOW_HASKELL__ < 603
  #include "config.h"
  #endif

Add a config.h to ease the transition.  Now if you include config.h
you get a warning instead of a failure:

In file included from System/Posix/Internals.hs:24:
/playpen/ghc/nightly/HEAD-cam-02-unx/i386-unknown-linux/ghc/includes/config.h:4: warning: #warning config.h is deprecated; please use ghcconfig.h instead

config.h ==> ghcconfig.h

-------------------------------
	Add instance information to :i
 	Get rid of the DeclPool
	-------------------------------


1.  Add instance information to :info command.  GHCi now prints out
    which instances a type or class belongs to, when you use :i

2.  Tidy up printing of unqualified names in user output.
    Previously Outputable.PrintUnqualified was
	type PrintUnqualified = Name -> Bool
    but it's now
	type PrintUnqualified = ModuleName -> OccName -> Bool
    This turns out to be tidier even for Names, and it's now also usable
    when printing IfaceSyn stuff in GHCi, eliminating a grevious hack.

3.  On the way to doing this, Simon M had the great idea that we could
    get rid of the DeclPool holding pen, which held declarations read from
    interface files but not yet type-checked.   We do this by eagerly
    populating the TypeEnv with thunks what, when poked, do the type
    checking.   This is just a logical continuation of lazy import
    mechanism we've now had for some while.

The InstPool and RulePool still exist, but I plan to get rid of them in
the same way.  The new scheme does mean that more rules get sucked in than
before, because previously the TypeEnv was used to mean "this thing was needed"
and hence to control which rules were sucked in.  But now the TypeEnv is
populated more eagerly => more rules get sucked in.  However this problem
will go away when I get rid of the Inst and Rule pools.

I should have kept these changes separate, but I didn't.  Change (1)
affects mainly
	TcRnDriver, HscMain, CompMan, InteractiveUI
whereas change (3) is more wide ranging.

Commments only

Fix problem with :i for (:)

#ifdefery to work around change in name of config.h.

Correct DocBook XML now

Fixed default font-family, color, and background. It contained a typo
and didn't work for chunked documentation.

Started to convert the users guide to DocBook XML. Not yet finished, there are
still *tons* of misplaced indexterms, but some sensible documentation can
already be generated.

Converted the building guide to DocBook XML

<fanfare>Finally: Support for DocBook XML!</fanfare>

After endless frustrating hours, I came to the conclusion that using (Open)Jade
for DocBook XML is virtually impossible, there are *tons* of problems with it:
Wildly differing paths, incorrect stylesheets, broken catalogs at funny places,
broken wrapper scripts, missing support on Cygwin etc.  >:-P * * *

So we follow the ubiquitous XSL hype and use xsltproc + DocBook XSL stylesheets
to transform DocBook XML to HTML and FO. From FO there are two routes to PDF and
PostScript: Either via FOP (preferred) or via PassiveTeX. Validation can be done
via xmllint using the new make target "validate". When PassiveTeX is available,
DVI can be generated, too.  A new make target "no-chunks-html" is available for
generating an all-in-one HTML document. Currently there is no way to generate
plain text or RTF, but at least the former could easily be added.

Generating HTML works out-of-the-box on Cygwin now, but you will have to install
FOP for other formats, because there seems to be no standard package for it.

The HTML appearance can be controlled via CSS, but the current location of the
master stylesheet below fptools/mk is a bit debatable. Better suggestions are
welcome.

Currently there is still support for SGML documents, but it will be dropped when
all documents are converted to DocBook XML. The build system is complex enough
already with the support for a *single* kind of DocBook...

Mention that this doc is out of date.  It's pretty huge, so I'm not
going to update it right now.

Fixes to previous

Various fixes and removal of dead code.

forgot to add this file

config.h ==> ghcconfig.h

sIZEOF_StgFunInfoExtra ==> sIZEOF_StgFunInfoExtraRev

Fix minor merge-o

Merge backend-hacking-branch onto HEAD.  Yay!

Work around stricter CPP in gcc 3.4.1

Fix to previous commit

wibble

avoid string gaps

Avoid string gaps

Avoid string gaps.

Avoid string gaps in CPP'd source.

Take the timestamp of an interpreted linkable from the timestamp of
the source file.  This works better when the local clock is out of
sync with the filesystem, and it's just as accurate.

Finally fix this problem:

make: *** No rule to make target `Text/Regex/Posix_hsc_make.c', needed by `depend'.  Stop.

caused by temporary droppings from hsc2hs.

Windows fixes.  There were some strange things going on with Windows
installation directories - I'm sure I've mucked up whatever was
happening with 'make install' for GHC on Windows, but there were
defintitely some bugs in here.  eg. we shouldn't have been setting
datadir to $(prefix)/imports unconditionally on Windows.

Make install now works for Happy, Alex and Haddock.  GHC probably
needs a bit of tweaking to get it working again.

Add $(Windows), which is "YES" if the host platform is a Windows
platform (mingw32 or cygwin32), and "NO" otherwise.

Fix problem with inline foreign-call changes yesterday.  Foreign call
args sometimes have to be modified using shimFCallArg - nowadays this
is done at code generation time, whereas it used to be done at
pretty-printing time.

Two changes:

  - newly created or unblocked threads go to the back of the run
    queue.  This is fairer because it avoids possible starvation.
    Fixes problem with conc004 test going much slower with optimisation.

  - The context switch flag is only reset after a yield.  Previously,
    it was being reset before we ran a thread, which meant that a tick
    that arrived during GC would be lost, and a thread doing lots of
    GC could hog the CPU.  Now, GC is effectively counted as part of
    the last running thread's timeslice.

MERGE TO STABLE.

Allow case-of-unsafe-ccall to compile to straight-line code, like it
used to.  This has already been fixed on the backend-hacking-branch,
but I'm doing it here so that it can be merged into the STABLE branch,
where it will help to work around a bug.

The bug is in CgExpr.lhs:primRetUnboxedTuple, which picks temporaries
to assign the result of a ccall to.  The Cg monad doesn't have a uniq
supply (in the HEAD), so we always pick the same temporaries.  This
leads to clashes in complex function with multiple ccalls.  Again,
this is already fixed in the backend-hacking-branch.  I don't see an
easy fix for this bug.

The compilation of case-of-unsafe-ccall doesn't suffer from this
problem, and it will help work around some cases of the bug, so I'm
going to merge this onto the STABLE branch after some testing.

Fix scoped type variable example.