gentoo-overlay/gnome-extra/libgda/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>gnome</herd>
  <use>
    <flag name="canvas">Enable support for <pkg>x11-libs/goocanvas</pkg></flag>
    <flag name="http">Enable embedded <pkg>net-libs/libsoup</pkg> based server</flag>
	<flag name="libsecret">Enable <pkg>app-crypt/libsecret</pkg> support to
		store login credentials</flag>
    <flag name="json">Enable support for JSON format</flag>
    <flag name="mdb">Enable support for Microsoft Access database using 
		<pkg>app-office/mdbtools</pkg></flag>
    <flag name="reports">Install tools for generating graphical reports</flag>
    <flag name="sourceview">Enable support for <pkg>x11-libs/gtksourceview</pkg></flag>
  </use>
</pkgmetadata>