sys-apps/pacman-5.0.2: Add ebuild to overlay.

Treecleaners are finally going to remove the really old and
        broken 4.x ebuilds. I created a bump request on bgo. In the
        meantime however I’ll drop the ebuild here.

sys-apps/pacman/Manifest

@@ -0,0 +1 @@
+DIST pacman-5.0.2.tar.gz 3361701 SHA256 dfd36086ad68564bcd977f4a1fafe51dd328acd4a95093ac4bf1249be9c41f0e SHA512 94a8cce1a52d2365a993c72f16537f4dbea6100feb8f22e8782cc7d2c1ef8a525a63f3c40bb183294c0faedcc743e3d806d2fc3c50a21ab9b03df2910039d628 WHIRLPOOL 2419486287d1ce26d97b3ad53513b4699d876cf5823f65b10d60d8f1df6b2150bc1b742677a60891dccc32bb2105a9a9bb10b58950f5403d0bd64859b0b8640b

sys-apps/pacman/metadata.xml

@@ -0,0 +1,11 @@
+<?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="gpg">Support verifying packages signed with GPG using <pkg>app-crypt/gpgme</pkg></flag>
+</use>
+</pkgmetadata>

sys-apps/pacman/pacman-5.0.2.ebuild

@@ -0,0 +1,84 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="6"
+
+PYTHON_COMPAT=( python2_7 )
+
+DESCRIPTION="Archlinux's binary package manager"
+HOMEPAGE="https://archlinux.org/pacman/"
+
+if [[ ${PV} == "9999" ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://git.archlinux.org/pacman.git"
+	EGIT_BRANCH="master"
+else
+	SRC_URI="https://sources.archlinux.org/other/pacman/${P}.tar.gz"
+	# Do *not* re-add ~x86!
+	# https://www.archlinux.org/news/phasing-out-i686-support/
+	KEYWORDS="~amd64"
+fi
+
+LICENSE="GPL-2"
+SLOT="0"
+
+IUSE="curl debug doc gpg"
+
+COMMON_DEPEND="app-arch/libarchive[lzma]
+	gpg? ( >=app-crypt/gpgme-1.4.0 )
+	dev-libs/openssl:=
+	curl? ( net-misc/curl )
+	sys-devel/gettext
+	virtual/libiconv
+	virtual/libintl"
+RDEPEND="${COMMON_DEPEND}"
+# create manpages *everytime*
+DEPEND="${COMMON_DEPEND}
+	app-text/asciidoc
+	doc? ( app-doc/doxygen )"
+
+src_prepare() {
+	# Remove a line that adds -Werror in ./configure when --enable-debug
+	# is passed:
+	sed -i -e '/-Werror/d' configure.ac
+
+	default
+}
+
+src_configure() {
+	local myeconfargs=(
+	    --localstatedir=/var
+		--disable-git-version
+		--with-openssl
+		# Help protect user from shooting his/her Gentoo installation
+		# in its foot.
+		--with-root-dir="${EPREFIX}/var/chroot/archlinux"
+		$(use_enable debug)
+		# build always manpages
+		--with-doc
+		# full doc with doxygen
+		$(use_enable doc doxygen)
+		$(use_with curl libcurl)
+		$(use_with gpg gpgme)
+	)
+	econf "${myeconfargs[@]}"
+}
+src_install() {
+	dodir /etc/pacman.d/
+	default
+}
+
+pkg_postinst() {
+	einfo ""
+	einfo "The default root dir was set to ${EPREFIX}/var/chroot/archlinux"
+	einfo "to avoid breaking Gentoo systems due to oscitancy."
+	einfo "You need to create this path by yourself (or choose another via"
+	einfo "pacman’s parameter -r|--root)."
+	einfo ""
+	einfo ""
+	einfo "Archlinux is dropping support for x86 (i686 called there) entirely"
+	einfo "in the near future. Keep this in mind when setting up new systems."
+	einfo "For more details see"
+	einfo "https://www.archlinux.org/news/phasing-out-i686-support"
+	einfo ""
+}