Some libraries have been ported (9/21/2013) to OS/2, including: jpeglib 9; ZLib version 1.2.8, the compression library; XZ version 5.0.5 is a general purpose data compression library and command line tools, which create about 30% smaller files than gzip; and libpng version 1.5.17.
Source: OS/2 Warp News and Rumors