GDAL is a library for reading and writing raster geospatial data formats, and is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. As a library, it presents a single abstract data model to the calling application for all supported formats. It may also be built with a variety of useful command-line utilities for data translation and processing. The related OGR library (which is part of the GDAL source tree) provides a similar capability for simple features vector data. The following optional requirements are detected automatically: cfitsio, freexl, hdf, hdf5, json-c, libwebp, netcdf, postgresql, xerces-c To enable OpenCL GPU-accelerated performance, specify the option OPENCL=yes (requires opencl-headers to build, and either nvidia-driver or amd-app-sdk with suitable GPU hardware to run).