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Now you just add them to SUBDIRS_BUILD instead of SUBDIRS.

You need to use the build.* rules rather than the make.* rules, though.

- When compiling with -mmacos-deployment-target=10.4, we need 
  --no-builtin-fprintf, as the use of GCC's builtin function 
  optimisation for fprintf together with #include "PosixSource" in the 
  RTS leads to the use of fwrite$UNIX2003 (with GCC 4.0.1 on Mac OS X 
  10.5.2).

	as discussed in this thread:
	http://www.haskell.org/pipermail/glasgow-haskell-users/2008-April/014614.html

This fixes a segfault in #1657

In an instance declaration, omitted methods get a definition that
uses the default method.  We used to generate source code and feed it
to the type checker.  But tc199 shows that is a bad idea -- see
Note [Default methods in instances] in TcClassDcl.

So this patch refactors to insteadl all us to generate the 
*post* typechecked code directly for default methods.

Refactoring reduces code and improves error messages

This bug allowed, for example

  f = let x = ( 1#, 'x' ) in x

which is ill-typed because you can't put an unboxed value in a tuple.
Core Lint fails on this program.

The patch makes the program be rejcted up-front.

Now we use <prog>.hp and <prog>.prof consistently.

This is the optimisation level recommended when compiling DPH programs. At the
moment, it is equivalent to -O2 -fno-method-sharing -fdicts-cheap
-fmax-simplifier-iterations20 -fno-spec-constr-threshold.

We want -Odph to be a dynamic flag and that should imply -fno-method-sharing.
This doesn't add a lot of complexity.

We use the "build" rather than "make" target

We currently only use the "make" targets, which already register the package.

Add a LICENSE file that just points to the GHC license.

On a 2.6.24 Linux kernel, it appears that timer_settime() for
CLOCK_REALTIME is sometimes hanging for a random amount of time when
given a very small interval (we were using 1ns).  Using 1ms seems to
be fine.  Also I installed a 1-second timeout to catch hangs in the
future.

Try to load interfaces in getLinkDeps

	Documentation and examples taken from 
	- ghc-pkg/Main.hs usageHeader
	- patch: FIX 1463 (implement 'ghc-pkg find-module')
	- patch: FIX #1839, #1463, by supporting ghc-pkg bulk queries 
			with substring matching