Don't constant-fold (negateFloat# 0.0#), because the compiler's
internal representation of floating-point literals (Rational) can't
represent -0.0.  This means that

   main = print (-0.0)

now gives the same results with -O as it does without.

Fixes test arith005.

- Stable.c:enlargeStablePtrTable(): plug a mem leak,
  the (re-)allocation is in bytes, not words.
- nuke RtsUtils.c:stgMallocWords(),
       RtsUtils.c:stgReallocWords()

On 32-bit platforms, add a bunch of symbols from libgcc.a used to
support 64-bit arithmetic.

It looks like these symbols are defined in libc on some platforms but
not others, but it shouldn't do any harm to include them in the list
of symbols that the linker knows about even if they're also in libc.
They were already included for some platforms (cygwin, mingw, and
darwin), this commit just includes then whenever we're compiling with
gcc on a 32-bit platform.

Mention that our Read class accepts hex and octal literals, as an
extension to Haskell 98.

Booting from HC fixes (slightly tweaked for the HEAD)

Submitted by: Urban Boquist <boquist@crt.se>

HC bootstrapping fixes

Submitted by: Urban Boquist <boquist@crt.se>

Include NetBSD support

Submitted by: Urban Boquist <boquist@crt.se>

NetBSD fixes

Submitted by: Urban Boquist <boquist@crt.se>

Comments only

Submitted by: Urban Boquist <boquist@crt.se>

Fixes to subdir ordering for booting from HC files.

Submitted by: Urban Boquist <boquist@crt.se>

Tweaks to make it work again (at least with 5.04.3)

Submitted by: Urban Boquist <boquist@crt.se>

Fixes to the hc-file-bundle

Submitted by: Urban Boquist <boquist@crt.se>

startTicker(): pass in the tick handler as an arg

win32 tidyup: exclude Select.c, Itimer.c and Signals.c from SRCS

block_vtalrm_signal() and unblock_vtalrm_signal(): unused, disable.

fix ProjectVersion

FIRST_BLOCK_OFF: more parens (for prec table illiterates like me)

Off-by-one tidyup.

ALLOC_AP, ALLOC_PAP and MKAP were all being constructed
with size arguments equal to (1+number of args/FVs) in
ByteCodeGen.schemeE, only for Interpreter.c to subtract 1
when fishing out the payloads. This commit drops the
up-and-downery.

Simplification spotted by Andy Moran

be gone

NCG support for f.e.d. stdcall -- Literal.MachLabels now optionally carry
the size (in bytes) of the stack frame it expects, if known. That just
so happens to match what stdcall labels need to be annotated with when
emitting them in the NCG..

Two performance tweaks:

  - Use specialised indirections, which perform the right kind of
    return without needing to enter the object they point to.  This
    saves a small percentages of memory reads.

  - Tweak the update code to generate better code with gcc.  This
    saves a few instructions per update.

-------------------------------------
      Fix a wibble in default-type setting for TH
	-------------------------------------

When a bunch of declarations contains no 'default' declaration,
we were setting 'defaultDefaultTys' as appropriate default types.
This isn't right for Template Haskell, which may have more than
one bunch of top-level decls.  (The bunches are separated by
top-level declaration splices.)

Instead, if there is no 'default' declaration we should do nothing.

-------------------------------------
      Respect SPECIALISE pragmas in instance decls
	-------------------------------------

For some time now we have simply been discarding SPECIALISE pragmas
in instance declarations.  I think this was my fault, at some point
when I was re-plumbing TcClassDcl.lhs, but it's been this way for
some time.

The only uses of this facility in the Prelude are in GHC/Float.lhs
and GHC/Real.lhs, which affected the efficiency of the Float and
Double instance of properFraction, floor, ceiling, etc.

Ah well, it's fixed now.

Reduce tctrace verbosity

Import wibbles

allocatePinned(): move large-object check to the front

bring rts_mainLazyIO() into scope

wibbles - drop references to PleaseStopAllocating(), use CloseNursery() to express ExtendNursery()

initStorage(): sm_mutex not correctly initialised (guess no one's done an SMP build for the past 12 months :)

Add __attribute__((regparm(1))) to evacuate()'s prototype.  This
avoids a lot of stack assignments between scavenge() and
evacuate().  Performance isn't affected measurably, though.

Fix bug in previous two commits: must check HEAP_ALLOCED() before
using Bdescr().

Check for the rlim_t type

gen_map_mblocks(): add comment re: issues that need to be addressed should anyone want to tackle the ToDo item

bring rts_mainLazyIO() into scope

to ease replacement of the underlying allocator used by stgMallocBytes() and friends, provide (&use) RtsUtils.c:stgFree()

wibble wrt stgMallocBytes()

msTime(): only used with PAR

leave out unused statics when not using BFD

Update ghc-pkg documentation w.r.t. multiple config files, and add
documentation for 'auto' packages.

code wibbles