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Add an access function substEnvEnv

Get the worker and wrapper in the right order

Primitives can return ThreadId# values

1) Fix a bad bug in Subst.lhs that made uniqAway go into an
   infinite loop when the 'hash code' in the in-scope set was
   zero.

2) Rename BasicTypes.isFragileOccInfo to isFragileOcc
   Add isDeadOcc to BasisTypes


(2) is just a tidy-up.  I have to commit it now because of (1), which
is a bad bug.  I hope that I've committed all the files involved in (2).

Added support for building gmp.dll again.

Gave version of RedHat in DocBook note.

Added note on how to fix RedHat 6.2 DocBook installation.

Improve -ddump-types

* Make the desugarer use string equality for string literal
  patterns longer than 1 character.  And put a specialised
  eqString into PrelBase, with a suitable specialisation rule.
  This makes a huge difference to the size of the code generated
  by deriving(Read) notably in Time.lhs

revert accidental parts of previous commit

add test for typedef-conflict with f.i.d.

Generate a new unique to be used in the typedef for a f.i.d., rather
than re-using the one from the function call, which might conflict if
there are two similar calls in the same module.

Document -unreg and unregisterised compilation.  Untested since
our DocBook installation is currently broken.

When compiling code for a case where the scrutinee is a primitve
comparison operator, we used to place the tag in a variable whose
unique was always the same: `mkPseudoUnique1 1'.  This was mostly
harmless but confused the Stix inliner in the NCG into generating
slightly less efficient code when the variable was used twice in a
basic block.

This patch fixes the problem by generating a new unique by just
changing the "tag" of an existing unique, namely the case binder.

Corrected URL for release notes.

Made message for exceeding 128Mb of heap on Windows more helpful, and
only abort when this limit is exceeded, not on first memory allocation!

Add codegen test for returning MutVar#.

Add new PrimRep, namely PrimPtrRep, as a catch-all for the various
boxed primitive types that currently don't have their own PrimReps.
Use this for MVar# and MutVar#.  This fixes a crash in the code
generator when a function returns one of these types.

recode primOpOkForSpeculation in terms of primOpIsCheap and primOpCanFail.

Add tests for newtypes in foreign declarations.

update output

Use newtype Ptr instead of just Addr, test newtypes in foreign decls.

No need to set TMPDIR in BUILD_LIB now.  Perhaps this was a workaround
for the previous bug.

- add -fno-warn-incomplete-patterns
- rename TMPDIR to DEFAULT_TMPDIR
- check TMPDIR environment variable (apprently missing before)
- add a bunch of anti-flags for profiling: -no-auto-all and friends.

Rename the make variable TMPDIR to DEFAULT_TMPDIR.  This fixes the
problem that saying 'TMPDIR=/foo make' in an fptools tree didn't work,
because GNU make is in the habit of overriding an environment variable
with the value of the corresponding make variable in a sub-process.

Just include ghc/docs/set in a binary distribution, not the build
system docs or the FFI spec.

remove a lot of unused gumph from this file

remove last use of REALLY_HASKELL_1_3

Use std monadic operators instead of `thenStrictlyST` and friends.

comment update

Removed spurious definition of GHC_INPLACE

Test for freeing StablePtrs.

- debugging: print weights as unsigned
- clean up getStablePtr a bit
- correct a comment

Fix a bug in freeStablePtr, the weight being subtracted from the entry
in the stable pointer table was wrong.

Fix a couple of bugs in the StablePtr weigthed reference counting.

turn off -Wpointer-arith, it generates some warnings in the headers on RH6.2

Convert one of the alternatives in an algebraic switch into the
default, if we don't already have a default.  This generates better
code in particular for inline comparison primops.

Noticed by: Qrczak

Use mkAbsCStmts rather than AbsCStmts directly.

test for bogus parse caused by Happy bug