gentoo-overlay/sci-mathematics/yacas/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>sci-mathematics</herd>
<longdescription lang="en">
  Yacas (Yet Another Computer Algebra System) is a small and highly
  flexible general-purpose computer algebra language. The syntax uses a
  infix-operator grammar parser. The distribution contains a small
  library of mathematical functions, but its real strength is in the
  language in which you can easily write your own symbolic manipulation
  algorithms.
</longdescription>
<use>
  <flag name="server">Build the network server version</flag>
</use>
</pkgmetadata>