llvm-0.4.0.0: INSTALL.txt

Build and installation instructions
-----------------------------------

Please don't think of these as canonical build instructions yet, as
this work is rather early along.  Let me tell you what's working for
*me*, and hopefully this information will be enough to get you going.


Prerequisites
-------------

Firstly, you'll need to have LLVM.  I recommend installing LLVM
version 2.4 which is what it's been tested with.

Build this and install it somewhere.  Follow the LLVM instructions,
or use this:

  cd llvm
  ./configure --prefix=$SOMEWHERE
  make
  make install

It's a good idea to have $SOMEWHERE/bin is in your path.


Building
--------
It's normal cabal package, but using a configure script as well to
configure LLVM.  It can be build and installed with the usual
three steps.

Configure the package.
  runhaskell Setup configure --configure-option --with-llvm-prefix=$SOMEWHERE

Build.
  runhaskell Setup build

Install.
  runhaskell Setup install


Building examples
-----------------

In the examples directory are a few example programs.  There's a GNU
Make Makefile in there, so running "make" in that directory will build
the examples, as will "make examples" in the top-level directory.
Doing "make run" will build and run the examples.

Note: On MacOS X you get a lot of "atom sorting error" warnings.  They
seem to be harmless.