Upgrade libxml2 and its portage dependencies

sys-libs/readline/readline-6.1_p2.ebuild

+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-libs/readline/readline-6.1_p2.ebuild,v 1.8 2011/03/01 00:34:48 ranger Exp $
+
+inherit autotools eutils multilib toolchain-funcs flag-o-matic
+
+# Official patches
+# See ftp://ftp.cwru.edu/pub/bash/readline-6.0-patches/
+PLEVEL=${PV##*_p}
+MY_PV=${PV/_p*}
+MY_PV=${MY_PV/_/-}
+MY_P=${PN}-${MY_PV}
+[[ ${PV} != *_p* ]] && PLEVEL=0
+patches() {
+        [[ ${PLEVEL} -eq 0 ]] && return 1
+        local opt=$1
+        eval set -- {1..${PLEVEL}}
+        set -- $(printf "${PN}${MY_PV/\.}-%03d " "$@")
+        if [[ ${opt} == -s ]] ; then
+                echo "${@/#/${DISTDIR}/}"
+        else
+                local u
+                for u in ftp://ftp.cwru.edu/pub/bash mirror://gnu/${PN} ; do
+                        printf "${u}/${PN}-${MY_PV}-patches/%s " "$@"
+                done
+        fi
+}
+
+DESCRIPTION="Another cute console display library"
+HOMEPAGE="http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html"
+SRC_URI="mirror://gnu/${PN}/${MY_P}.tar.gz $(patches)"
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd"
+IUSE=""
+
+# We must be certain that we have a bash that is linked
+# to its internal readline, else we may get problems.
+RDEPEND=">=sys-libs/ncurses-5.2-r2"
+DEPEND="${RDEPEND}
+        >=app-shells/bash-2.05b-r2"
+
+S=${WORKDIR}/${MY_P}
+
+src_unpack() {
+        unpack ${MY_P}.tar.gz
+
+        cd "${S}"
+        [[ ${PLEVEL} -gt 0 ]] && epatch $(patches -s)
+        epatch "${FILESDIR}"/${PN}-5.0-no_rpath.patch
+        epatch "${FILESDIR}"/${PN}-5.2-no-ignore-shlib-errors.patch #216952
+        epatch "${FILESDIR}"/${PN}-6.1-rlfe-freebsd.patch # 301508
+
+        # force ncurses linking #71420
+        sed -i -e 's:^SHLIB_LIBS=:SHLIB_LIBS=-lncurses:' support/shobj-conf || die "sed"
+
+        # fix building under Gentoo/FreeBSD; upstream FreeBSD deprecated
+        # objformat for years, so we don't want to rely on that.
+        sed -i -e '/objformat/s:if .*; then:if true; then:' support/shobj-conf || die
+
+        ln -s ../.. examples/rlfe/readline # for local readline headers
+}
+
+src_compile() {
+        append-cppflags -D_GNU_SOURCE
+
+        econf --with-curses || die
+        emake || die
+
+        if ! tc-is-cross-compiler ; then
+                # code is full of AC_TRY_RUN()
+                cd examples/rlfe
+                append-ldflags -L.
+                local l
+                for l in readline history ; do
+                        ln -s ../../shlib/lib${l}$(get_libname)* lib${l}$(get_libname)
+                        ln -sf ../../lib${l}.a lib${l}.a
+                done
+                econf || die
+                emake || die
+        fi
+}
+
+src_install() {
+        emake DESTDIR="${D}" install || die
+        gen_usr_ldscript -a readline history #4411
+
+        if ! tc-is-cross-compiler; then
+                dobin examples/rlfe/rlfe || die
+        fi
+
+        dodoc CHANGELOG CHANGES README USAGE NEWS
+        docinto ps
+        dodoc doc/*.ps
+        dohtml -r doc
+}
+
+pkg_preinst() {
+        preserve_old_lib /$(get_libdir)/lib{history,readline}.so.{4,5} #29865
+}
+
+pkg_postinst() {
+        preserve_old_lib_notify /$(get_libdir)/lib{history,readline}.so.{4,5}
+}