GNU Common C++ is a very portable and highly optimized class fr a mework for writing C++ applications that need to use threads and support concurrent sychronization, and that use sockets, XML parsing, object serialization, thread-optimized String and data structure classes, etc. This fr a mework offers a class foundation that hides platform differences from your C++ application so that you need not write platform specific code. GNU Common C++ has been ported to compile nativily on most platforms which support either posix threads, or on maybe be used with Debian hosted mingw32 to build native threading applications for Microsoft Windows.