Gnat_Util is a library uniting a number of GNAT sources that are used by different tools. At the moment Gnat_Util provides GNAT sources needed by ASIS, GNATCOLL and Gprbuild. Its main purpose is allowing to simultaneously use tools like ASIS and GNATCOLL (and other ones based on GNAT sources, if they are to come), which would normally cause name conflicts between the same GNAT sources that they use. Building both of them using same set of sources that is Gnat_Util solves this problem. WWW: http://libre.adacore.com