app-emacs/org-mode: inform users of run-time deps

Org mode has a long list of optional run-time dependencies.  Expend a
reasonable amount of effort to inform users of these with the help of the
readme.gentoo eclass.

Gentoo-bug: 563486
Signed-off-by: Marc Joliet <marcec@gmx.de>

app-emacs/org-mode/org-mode-8.3.2-r1.ebuild

@@ -0,0 +1,61 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+inherit readme.gentoo elisp
+
+DESCRIPTION="An Emacs mode for notes and project planning"
+HOMEPAGE="http://www.orgmode.org/"
+SRC_URI="http://orgmode.org/org-${PV}.tar.gz"
+
+LICENSE="GPL-3+ FDL-1.3+ contrib? ( GPL-2+ MIT ) odt-schema? ( OASIS-Open )"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~x86 ~x86-fbsd ~x86-macos"
+IUSE="contrib doc odt-schema"
+RESTRICT="test"
+
+DEPEND="doc? ( virtual/texi2dvi )"
+
+S="${WORKDIR}/org-${PV}"
+SITEFILE="50${PN}-gentoo.el"
+
+DOC_CONTENTS="
+Org mode has a large variety of run-time dependencies, so you may have to
+install one or more additional packages.  A non-exhaustive list of these
+dependencies may be found at <http://orgmode.org/worg/org-dependencies.html>.
+"
+
+src_compile() {
+	emake datadir="${EPREFIX}${SITEETC}/${PN}"
+	use doc && emake pdf card
+}
+
+src_install() {
+	emake \
+		DESTDIR="${D}" \
+		ETCDIRS="styles $(use odt-schema && echo schema)" \
+		lispdir="${EPREFIX}${SITELISP}/${PN}" \
+		datadir="${EPREFIX}${SITEETC}/${PN}" \
+		infodir="${EPREFIX}/usr/share/info" \
+		install
+
+	cp "${FILESDIR}/${SITEFILE}" "${T}/${SITEFILE}" || die
+
+	if use contrib; then
+		elisp-install ${PN}/contrib contrib/lisp/{org,ob,ox}*.el
+		insinto /usr/share/doc/${PF}/contrib
+		doins -r contrib/README contrib/scripts
+		find "${ED}/usr/share/doc/${PF}/contrib" -type f -name '.*' \
+			-exec rm -f '{}' '+'
+		# add the contrib subdirectory to load-path
+		sed -i -e 's:\(.*@SITELISP@\)\(.*\):&\n\1/contrib\2:' \
+			"${T}/${SITEFILE}" || die
+	fi
+
+	elisp-site-file-install "${T}/${SITEFILE}"
+	readme.gentoo_create_doc
+	dodoc README doc/library-of-babel.org doc/orgcard.txt etc/ORG-NEWS
+	use doc && dodoc doc/org.pdf doc/orgcard.pdf doc/orgguide.pdf
+}