Update ambuild tooling to work on both Windows / Linux with boost distrib (#3)

* Add Windows / msvc boost support on AMBuild

* Disable RTTI and use config on b2's side

* Update AMBuild to require boost's setup on Windows / Linux

* Remove HL2SDK and MM:S settings in configure/buildscript

* Indenting is hard

README.md

@@ -1,16 +1,34 @@
-SourceMod Socket Extension
-==========================
-This has been forked from [sfPlayer´s origin Git repository](http://player.to/gitweb/index.cgi?p=sm-ext-socket.git). Get to the [AlliedModders forum thread](https://forums.alliedmods.net/showthread.php?t=67640) for more information.
+# SourceMod Socket Extension
+This has been forked from [sfPlayer's origin Git repository][socket-git].
+Get to the [AlliedModders forum thread][socket-am] for more information.
 
-Dependencies for building
--------------------------
- * [SourceMod](https://github.com/alliedmodders/sourcemod)
- * [Boost](http://www.boost.org/)
- * ~~[msinttypes](https://code.google.com/p/msinttypes/)~~
+[socket-git]: http://player.to/gitweb/index.cgi?p=sm-ext-socket.git
+[socket-am]: https://forums.alliedmods.net/showthread.php?t=67640
 
-Building on Windows
--------------------
-Set the following environment variables on your system:
- * `SOURCEMOD` - path to SourceMod (>= 1.5.x)  
- * `BOOST155` - path to boost libraries (>= 1.5.5)  
- *  ~~`MSINTTYPES` - path to latest version of msinttypes~~ (Replaced "stdlib.h" with \<cstdlib\>)
+## Building with AMBuild
+
+### Dependencies
+- [SourceMod][] toolchain (follow the instructions on [Building SourceMod][] to set up your
+environment, if you haven't already)
+- [Boost][]
+
+[SourceMod]: https://github.com/alliedmodders/sourcemod/
+[Building SourceMod]: https://wiki.alliedmods.net/Building_SourceMod
+[Boost]: http://www.boost.org/
+
+### Configuration
+
+1. Configure Boost.
+    - Download the release archive from the site and extract the archive to a location
+    `${BOOST_PATH}`.  Set that location as your working directory.
+    - Run the `bootstrap` script for your platform to build `b2`.  Pass `--with-toolset` with
+    either `msvc`, `gcc`, or `clang` depending on what compiler you plan on building with.
+    - Invoke `b2 define=BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY address-model=32 runtime-link=static link=static --build-dir=build/x86 --stagedir=stage/x86 --with-thread --with-date_time --with-regex`
+    to build the required libraries in mixed RTTI mode (boost will use RTTI, the extension will
+    not).  The configuration should build fully static x86 libraries on both Withdows and Linux,
+    with versioned filenames on the former and system names on the latter (which allows us to
+    use `-lboost_*` without additional extensions when setting up the link flags on `ambuild`).
+        - If an existing build is present with a different configuration, use `-a` to force
+        rebuilding the libraries.
+2. `cd build/` and run `../configure.py --sm-path ${SM_PATH} --boost-path ${BOOST_PATH}`
+3. `ambuild` as normal.