<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <maintainer type="project"> <email>sci-biology@gentoo.org</email> <name>Gentoo Biology Project</name> </maintainer> <use> <flag name="double-precision"> use double precision instead of single-precision floating point (2x memroy required) </flag> </use> </pkgmetadata>