[Boost-build] PATCH: Add support for Windows SDK 7.0 and 7.1

Subject: [Boost-build] PATCH: Add support for Windows SDK 7.0 and 7.1
From: Adam Ehlers Nyholm Thomsen (adam_at_[hidden])
Date: 2010-09-28 03:33:21

Hi
The attached patch adds support for building boost using Windows SDK
7.0 and Windows SDK 7.1. It is my first attempt at writing jam code so
it could probably be greatly improved by having a more seasoned jam
coder take a look at it.

Beware: The patch doesn't work for debug shared builds currently since
the double link bug I reported earlier results in command-lines which
do not run using this patch.

The Windows SDK is a bundle from Microsoft with the headers, libraries
and tools, including compilers, necessary for windows development. The
compilers included in SDK 7.0 and 7.1 are the same as the compilers
included in VS 2008 and 2010 respectively. Since the Windows SDK is
available for download free-of-charge I believe it would be a benefit
for boost to have out of the box support for it.

The only difference build system wise between the SDK and VS proper is
that the SDKs use a different environment setting script which has to
be called a little differently.
/Adam