include various source based on platform

From: Timothy Ritchey (tritchey_at_[hidden])
Date: 2004-11-18 11:50:02

I have a project source tree that looks like this:

./include
./src
./platform/win32/include
./platform/win32/src
./platform/linux/include
./platform/linux/src

The root include and src are the platform agnostic files, and each platform 
directory has the versions of the files specifically for that platform. I've 
figured out how to optionally include different directories based on the 
toolset, but for the life of me can't figure out how to include additional 
source files based on the toolset/os. Any help would be greatly appreciated.

Cheers,
tim

project kernel
: requirements <threading>multi
: default-build release
: source-location ./src
: build-dir ../build/stage/lib
;
exe kernel
: [ glob *.cpp ]
../libian ../libsec ..//libxml2 ..//ws2_32
: <include>include
<include>../libian/include
<include>../libsec/include
<include>../base/boost
<toolset>intel-win:<include>platform/win32/include
<toolset>intel-win:<include>../base/platform/win32/include
<toolset>intel-win:<include>../base/platform/win32/libxml2/include
<toolset>intel-win:<include>../base/platform/win32/iconv/include
<toolset>intel-win:<include>../base/mDNSResponder
<threading>multi
;