Squashfs is a highly compressed read-only filesystem for Linux. It uses zlib to compress files, inodes, and directories. All blocks are packed to minimize the data overhead, and block sizes of between 4K and 1M are supported. It is intended to be used for archival use, for live CDs, and for embedded systems where low overhead is needed.
prtpacker (Portable Resource Tree Packer, pronounced PIRT-Packer) is a tool for creating C or C++ source code from external program resources such as images, text, or data. These resources can be arranged in a tree structure much like a typical file system. After compiling and linking the resulting source code you can access the resource tree from within your software through a simple API. Be aware that all resources stay in memory and cannot be easily deallocated.