How to build libSL-cs using Mono: 1. Download and install Mono for your platform -- for OS X, I used ftp://www.go-mono.com/archive/1.1.15/macos-10-ppc/2/MonoFramework-1.1.15_2.macos10.novell.ppc.dmg 2. If you haven't already, install the Subversion client from http://subversion.tigris.org/project_packages.html 3. Grab the latest version of libsecondlife-cs: $ svn co svn://svn.gna.org/svn/libsecondlife/trunk libsecondlife $ cd libsecondlife/libsecondlife-cs 4. Convert libsecondlife.sln to a Makefile using prj2make, which is part of the Mono distribution: $ prj2make libsecondlife.sln I got this as an output: -rw-r--r-- 1 bbyer bbyer 3099 Jun 26 14:43 Makefile 5. Build the project with make: $ make 6. The examples will be built and installed into bin/Debug: $ cd bin/Debug $ mono name2key.exe eddy stryker Info: Connecting to 72.5.13.170:12035 UUID: f6ec1e24fd294f4cb21e23b42841c8c7