[dev-libs/wiringpi] Added ebuild and metadata.xml.

new file:   dev-libs/wiringpi/metadata.xml
	new file:   dev-libs/wiringpi/wiringpi-9999.ebuild

dev-libs/wiringpi/metadata.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>holgersson@posteo.de</email>
+		<name>holgersson</name>
+	</maintainer>
+	<use>
+		<flag name="examples-src">Inclusion of examples in examples/, stored in /usr/share/doc/${P}/</flag>
+		<flag name="gpio">Build also gpio binary</flag>
+</use>
+</pkgmetadata>

dev-libs/wiringpi/wiringpi-9999.ebuild

@@ -0,0 +1,40 @@
+# Copyright 2015-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+
+EAPI=6
+
+inherit eutils toolchain-funcs git-r3
+
+DESCRIPTION="A 'wiring' like library for the Raspberry Pi (inkluding GPIO tool)"
+HOMEPAGE="http://wiringpi.com/"
+EGIT_REPO_URI="git://git.drogon.net/wiringPi"
+
+LICENSE="LGPL-3"
+SLOT="0"
+KEYWORDS=""
+IUSE="examples-src +gpio"
+
+src_compile() {
+	emake -C wiringPi
+	emake -C devLib INCLUDE="-I../wiringPi"
+	pushd wiringPi
+	ln -s libwiringPi* libwiringPi.so
+	popd
+	pushd devLib
+	ln -s libwiringPiDev* libwiringPiDev.so
+	popd
+	use gpio &&	emake -C gpio LDFLAGS="-L../wiringPi -L../devLib ${LDFLAGS}" INCLUDE="-I../wiringPi -I../devLib"
+}
+
+src_install() {
+	doheader wiringPi/*.h devLib/*.h
+	dolib wiringPi/libwiringPi.so.2.32
+	dolib devLib/libwiringPiDev.so.2.32
+	dosym libwiringPi.so.2.32 /usr/$(get_libdir)/libwiringPi.so
+	dosym libwiringPiDev.so.2.32 /usr/$(get_libdir)/libwiringPiDev.so
+	use gpio && dobin gpio/gpio
+
+	dodoc README.TXT
+	use examples-src && dodoc examples/*.c
+}