vos-s5.3

Attached is a patch that

1. adds a file called BUILD.txt that starts to give some instructions on 
how to build vos, including a list of dependencies you can install if 
you don'nt want the scons script to try downloading and building stuff.

2. links to libpthread when testing crypto++

vostest runs successfully for me.  Pete, can you describe what the other 
programs you've started are for and how to run them?

Reed

=== added file 'BUILD.txt'
--- BUILD.txt	1970-01-01 00:00:00 +0000
+++ BUILD.txt	2009-02-17 18:13:01 +0000
@@ -0,0 +1,92 @@
+
+
+Building VOS
+============
+
+To build VOS, run the scons.py script:
+
+ ./scons.py
+
+or
+
+ python ./scons.py
+
+Targets built will be found in various subdirectories of debug/build. You will
+need to add directories containing shared libraries to your system dynamic
+library path (LD_LIBRARY_PATH environment variable on Linux, DYLIB_LIBRARY_PATH
+on Mac OSX, PATH on Windows).
+
+Build options
+-------------
+
+TODO what options can we give to scons??
+
+Use "./scons.py tests" to build tests from src/tests
+
+
+Supported Platforms
+===================
+
+Debian Linux 'sid' with GCC 4 and GNU dev tools
+Windows XP with ???compiler???
+Windows Vista with ???compiler???
+Mac OSX 10.?? with ???compiler???
+
+
+Build Dependencies
+==================
+
+The following "third party" libraries are required to build VOS.
+Python is required to run the scons build system. Scons will determine 
+whether each library is already installed on the system, and if not,
+will try to obtain it from the net and build it.  It has several
+ways to obtain them; you can select your preferred method using 
+the DOWNLOAD_OPT variable.  The methods are bzr checkout,
+hg (mercurial) checkout, install on Debian using apt-get, or downloading
+a tarball snapshot using wget. 
+
+Python 2.4+                     http://www.python.org
+libicu
+libboost_thread                 http://www.boost.org
+libboost_system
+libboost_regex 
+libboost_signals
+libboost_program_options
+boost asio
+boost spirit
+boost_unit_test_framework
+Crypto++
+xerces
+pkg-config 
+Qt 4.5+                         http://www.qtsoftware.com
+Open Scene Graph
+
+Optional:
+bzr 1.5                            http://www.bazaar-ng.org
+Mercurial
+wget
+
+
+Debian/Ubuntu
+-------------
+
+Install the following packages with apt-get:
+
+python libicu-dev libboost-thread-dev libbost-system-dev libboost-regex-dev
libboost-signals-dev libboost-program-options-dev libboost-dev libboost-test-dev
libcrypto++-dev libxerces-c2-dev pkg-config libqt4-dev libopenscenegraph-dev
+
+
+Fedora
+------
+
+todo
+
+Windows
+-------
+
+todo
+
+
+Mac OSX
+-------
+
+todo

=== modified file 'scripts/cryptopp.py'
--- scripts/cryptopp.py	2009-02-12 02:01:58 +0000
+++ scripts/cryptopp.py	2009-02-17 16:21:31 +0000
@@ -38,7 +38,7 @@
         context.sconf.env['CRYPTOPP_CPPDEFINES'] = ['CRYPTOPP_IMPORTS']
     return thirdparty.TryCompileAndLink(context, 'Crypto++', 'CRYPTOPP_', '.cc',
                                         headers=['cryptopp/cryptlib.h'],
-                                        libraries=['cryptopp'])
+                                        libraries=['cryptopp', 'pthread'])

 def checkCryptoPP(context):
     return thirdparty.configureDependency(context,

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