games-fps/rtcwsp-demo: remove deprecated games eclass

Also update to EAPI 6

Gentoo-Bug: https://bugs.gentoo.org/574082
Package-Manager: Portage-2.3.6, Repoman-2.3.2

games-fps/rtcwsp-demo/rtcwsp-demo-1.1b-r2.ebuild

@@ -0,0 +1,56 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+inherit eutils unpacker
+
+MY_P="wolfspdemo-linux-${PV}.x86.run"
+
+DESCRIPTION="Return to Castle Wolfenstein - Single-player demo"
+HOMEPAGE="http://games.activision.com/games/wolfenstein/"
+SRC_URI="mirror://idsoftware/wolf/linux/old/${MY_P}
+	mirror://3dgamers/returnwolfenstein/${MY_P}"
+
+LICENSE="RTCW"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~x86"
+IUSE=""
+RESTRICT="strip mirror"
+
+RDEPEND="sys-libs/glibc
+	amd64? ( sys-libs/glibc[multilib] )
+	virtual/opengl[abi_x86_32(-)]
+	x11-libs/libX11[abi_x86_32(-)]
+	x11-libs/libXext[abi_x86_32(-)]"
+
+S=${WORKDIR}
+
+dir="/opt/${PN}"
+#Ddir=${D}/${dir}
+
+src_install() {
+	insinto "${dir}"
+	doins -r demomain Docs
+
+	exeinto "${dir}"
+	doexe bin/x86/wolfsp.x86 openurl.sh || die "copying exe"
+
+	make_wrapper ${PN} ./wolfsp.x86 "${dir}" "${dir}"
+
+	# fix buffer overflow
+	sed -i -e '/^exec/i \
+export MESA_EXTENSION_MAX_YEAR=2003 \
+export __GL_ExtensionStringVersion=17700' "${ED}/usr/bin/${PN}"
+
+	doins WolfSP.xpm CHANGES
+	newicon WolfSP.xpm ${PN}.xpm
+
+	make_desktop_entry ${PN} "Return to Castle Wolfenstein (SP demo)" \
+		${PN}.xpm
+}
+
+pkg_postinst() {
+	elog "Install 'rtcwmp-demo' for multi-player"
+	elog
+	elog "Run '${PN}' for single-player"
+}