I recently created some MacOS X frameworks of the libsigc++-2.0 and libxml++-1.0 libraries. I figured these might be useful to other people, so I'm offering them here for others to grab. Just download them and put them in your ~/Library/Frameworks directory and you can then use them in your Xcode projects.

• libsigc++ 2.0.17 Framework
• libxml++ 1.0.4 Framework