keybinder is a library for registering global keyboard shortcuts to be used by GTK-based applications under the X Window System.

libcreg is a library to access the Windows 9x/Me Registry File (CREG) format.

General purpose cryptographic library for C++.

OPeNDAP provides software that allows you to access data over the internet, from programs that weren't originally designed for that purpose, as well as some that were. While OPeNDAP is the original developer of the Data Access protocol which its software uses, many other groups have adopted DAP and provide compatible clients, servers and software development kits.

libdbi implements a database-independent abstraction layer in C, similar to the DBI/DBD layer in Perl. Writing one generic set of code, programmers can leverage the power of multiple databases and multiple simultaneous database connections by using this framework.

libags is a general purpose application context library built upon GObject providing persistence and configuration. It allows you to organize threads in a tree hierarchy that is synced 1000 times per second per default. Since it is written in a object orientated manner you might want to override its default behaviour.