gentoo-overlay/sci-libs/grib_api/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="project">
  <email>sci@gentoo.org</email>
  <name>Gentoo Science Project</name>
</maintainer>
<longdescription lang="en">  
  The European Centre for Medium-Range Weather Forecasts GRIdded
  Binary (GRIB) API is an application program interface accessible
  from C and FORTRAN programs developed for encoding and decoding WMO
  FM-92 GRIB edition 1 and edition 2 messages. A useful set of command
  line tools is also provided to give quick access to grib messages.
</longdescription>
<use>
  <flag name="jasper">Use <pkg>media-libs/jasper</pkg> instead of
  <pkg>media-libs/openjpeg</pkg> for JPEG 2000 support</flag>
  <flag name="aec">Build with Adaptive Entropy Coding compression, needs <pkg>sci-libs/libaec</pkg></flag>
</use>
</pkgmetadata>