Merged Julian's changes to make it more comprehensible to non FP programmers.

accept '-fvia-c' as an alternative capitalisation for '-fvia-C' (the
old driver used to do this, and it's documented in the Users' Guide)

Add comments

Document new -fstrictfp option

This commit tries to fix the discrepancies between the results of
floating point calculations during runtime and compile time, see
e.g. fptools/ghc/tests/numeric/should_run/arith008.hs. Part of the
story was the fact that floating point values are represented as
Rationals in GHC and therefore never lost precision, at least for the
operations for which constant folding is done. To compensate for this,
before and after floating point operations the operands are
temporarily converted to/from Float/Double. This is wrong, because
host architecture and target architecture are confused this way, but
in a non-cross-compiling scenario it works.

Added new -fstrictfp flag

* Fixed handling of filename arguments without extension
* Added new -fstrictfp flag
* Some cosmetic changes (unless/when instead of if)

Merged Marcin's patches for unboxed thingies

Functional Dependencies were not getting simplified away when the dictionary
that generated them was simplified by instance resolution.  Fixed.

Add mutually recursive kind inference test

Fix typeKind

Arrange that type signatures work right.  Consider:

	   module A
		import M( f )
		f :: Int -> Int
		f x = x

Here, the 'f' in the signature isn't ambiguous; it
refers to the locally defined f.  (This isn't clear in
the Haskell 98 report, but it will be.)

Wibbles in the new kind-checking stuff

Add a type signature

Tidy up newMutTyVar/newSigTyVar

remove unused #include "gmp.h"

Add a section describing GHC's version numbering policy.

wibble

- add a new section on "keeping intermediate files"
- document the new -keep-tmp-files and -keep-raw-s-file options.

Add -keep-tmp-files flag, to tell the driver not to delete tmp files.
Useful mainly for debugging the driver, and obsoletes the GHC
folklore of using ^Z for this purpose.

This commit completely re-does the kind-inference mechanism.
Previously it was inter-wound with type inference, but that was
always hard to understand, and it finally broke when we started
checking for ambiguity when type-checking a type signature (details
irrelevant).

So now kind inference is more clearly separated, so that it never
takes place at the same time as type inference.  The biggest change
is in TcTyClsDecls, which does the kind inference for a group of
type and class declarations.  It now contains comments to explain
how it all works.

There are also comments in TypeRep which describes the slightly
tricky way in which we deal with the fact that kind 'type' (written
'*') actually has 'boxed type' and 'unboxed type' as sub-kinds.
The whole thing is a bit of a hack, because we don't really have 
sub-kinding, but it's less of a hack than before.

A lot of general tidying up happened at the same time.
In particular, I removed some dead code here and there

Remove dead code

Take the README for a binary dist from the project directory, not fptools.

update, and make less GHC-specific

update to match reality; try to be a bit more helpful

Zap yet another bogon in x86 floating args to ccalls.

more changes to FPTOOLS_GHC_VERSION:
* fixed bug in too-many-args case
* reworked regexp for versions

sparc NCG is now enabled by default for non-opt compilation.

Reg needs to be imported non-abstractly for sparc.

Make the x86 NCG work again following recent sparc hackage.

Also, fix the x86 bits pertaining to the floats-promoted-to-doubles-
in-ccalls problem.  So this problem should no longer exist on x86
or sparc via NCG.

use Maybe.isJust instead of proprietary verison.

added Debian location to DocBook catalog test

typo

updated comments

Hash MachLabel, too

Replace RcFloating with RcFloat/RcDouble. I'm not exactly sure what
I'm doing here, so somebody else should better have a look.

* linux_TARGET_ARCH => i386_TARGET_ARCH
* move callClobberedRegs into safety in front of the register
  #define-orgy (what the ... is this cpp-ery for? %-]

reinstate used import

remove unused imports

remove unused imports