Upgrade libxml2 and its portage dependencies

dev-libs/libxml2/libxml2-2.7.8.ebuild

+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-libs/libxml2/libxml2-2.7.8.ebuild,v 1.9 2011/02/26 17:17:33 arfrever Exp $
+
+EAPI="3"
+PYTHON_DEPEND="python? 2"
+PYTHON_USE_WITH="-build xml"
+PYTHON_USE_WITH_OPT="python"
+SUPPORT_PYTHON_ABIS="1"
+RESTRICT_PYTHON_ABIS="3.* *-jython"
+
+inherit libtool flag-o-matic eutils python autotools prefix
+
+DESCRIPTION="Version 2 of the library to manipulate XML files"
+HOMEPAGE="http://www.xmlsoft.org/"
+
+LICENSE="MIT"
+SLOT="2"
+KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~ppc-aix ~sparc-fbsd ~x86-fbsd ~x64-freebsd ~x86-freebsd ~hppa-hpux ~ia64-hpux ~x86-interix ~amd64-linux ~ia64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
+IUSE="debug doc examples icu ipv6 python readline test"
+
+XSTS_HOME="http://www.w3.org/XML/2004/xml-schema-test-suite"
+XSTS_NAME_1="xmlschema2002-01-16"
+XSTS_NAME_2="xmlschema2004-01-14"
+XSTS_TARBALL_1="xsts-2002-01-16.tar.gz"
+XSTS_TARBALL_2="xsts-2004-01-14.tar.gz"
+
+SRC_URI="ftp://xmlsoft.org/${PN}/${P}.tar.gz
+        test? (
+                ${XSTS_HOME}/${XSTS_NAME_1}/${XSTS_TARBALL_1}
+                ${XSTS_HOME}/${XSTS_NAME_2}/${XSTS_TARBALL_2} )"
+
+RDEPEND="sys-libs/zlib
+        icu? ( dev-libs/icu )
+        readline? ( sys-libs/readline )"
+
+DEPEND="${RDEPEND}
+        hppa? ( >=sys-devel/binutils-2.15.92.0.2 )"
+
+pkg_setup() {
+        if use python; then
+                python_pkg_setup
+        fi
+}
+
+src_unpack() {
+        # ${A} isn't used to avoid unpacking of test tarballs into $WORKDIR,
+        # as they are needed as tarballs in ${S}/xstc instead and not unpacked
+        unpack ${P}.tar.gz
+        cd "${S}"
+
+        if use test; then
+                cp "${DISTDIR}/${XSTS_TARBALL_1}" \
+                        "${DISTDIR}/${XSTS_TARBALL_2}" \
+                        "${S}"/xstc/ \
+                        || die "Failed to install test tarballs"
+        fi
+}
+
+src_prepare() {
+        # Patches needed for prefix support
+        epatch "${FILESDIR}"/${PN}-2.7.1-catalog_path.patch
+        epatch "${FILESDIR}"/${PN}-2.7.2-winnt.patch
+
+        eprefixify catalog.c xmlcatalog.c runtest.c xmllint.c
+
+        epunt_cxx
+
+        # Reactivate the shared library versionning script
+        epatch "${FILESDIR}/${P}-reactivate-script.patch"
+
+        # Fix a potential memory access error
+        epatch "${FILESDIR}/${P}-xpath-memory.patch"
+
+        # Fix a potential freeing error in XPath
+        epatch "${FILESDIR}/${P}-xpath-freeing.patch"
+        epatch "${FILESDIR}/${P}-xpath-freeing2.patch"
+
+        epatch "${FILESDIR}/${P}-disable_static_modules.patch"
+
+        # Please do not remove, as else we get references to PORTAGE_TMPDIR
+        # in /usr/lib/python?.?/site-packages/libxml2mod.la among things.
+        # We now need to run eautoreconf at the end to prevent maintainer mode.
+#       elibtoolize
+
+        # Python bindings are built/tested/installed manually.
+        sed -e "s/@PYTHON_SUBDIR@//" -i Makefile.am || die "sed failed"
+
+        eautoreconf
+}
+
+src_configure() {
+        # USE zlib support breaks gnome2
+        # (libgnomeprint for instance fails to compile with
+        # fresh install, and existing) - <azarah@gentoo.org> (22 Dec 2002).
+
+        # The meaning of the 'debug' USE flag does not apply to the --with-debug
+        # switch (enabling the libxml2 debug module). See bug #100898.
+
+        # --with-mem-debug causes unusual segmentation faults (bug #105120).
+
+        local myconf="--with-html-subdir=${PF}/html
+                --docdir=${EPREFIX}/usr/share/doc/${PF}
+                $(use_with debug run-debug)
+                $(use_with icu)
+                $(use_with python)
+                $(use_with readline)
+                $(use_with readline history)
+                $(use_enable ipv6)"
+
+        # filter seemingly problematic CFLAGS (#26320)
+        filter-flags -fprefetch-loop-arrays -funroll-loops
+
+        econf ${myconf}
+}
+
+src_compile() {
+        default
+
+        if use python; then
+                python_copy_sources python
+                building() {
+                        emake PYTHON_INCLUDES="${EPREFIX}$(python_get_includedir)" \
+                                PYTHON_SITE_PACKAGES="${EPREFIX}$(python_get_sitedir)"
+                }
+                python_execute_function -s --source-dir python building
+        fi
+}
+
+src_test() {
+        default
+
+        if use python; then
+                testing() {
+                        emake test
+                }
+                python_execute_function -s --source-dir python testing
+        fi
+}
+
+src_install() {
+        emake DESTDIR="${D}" \
+                EXAMPLES_DIR="${EPREFIX}"/usr/share/doc/${PF}/examples \
+                install || die "Installation failed"
+
+        # on windows, xmllint is installed by interix libxml2 in parent prefix.
+        # this is the version to use. the native winnt version does not support
+        # symlinks, which makes repoman fail if the portage tree is linked in
+        # from another location (which is my default). -- mduft
+        if [[ ${CHOST} == *-winnt* ]]; then
+                rm -rf "${ED}"/usr/bin/xmllint
+                rm -rf "${ED}"/usr/bin/xmlcatalog
+        fi
+
+        if use python; then
+                installation() {
+                        emake DESTDIR="${D}" \
+                                PYTHON_SITE_PACKAGES="${EPREFIX}$(python_get_sitedir)" \
+                                docsdir="${EPREFIX}"/usr/share/doc/${PF}/python \
+                                exampledir="${EPREFIX}"/usr/share/doc/${PF}/python/examples \
+                                install
+                }
+                python_execute_function -s --source-dir python installation
+
+                python_clean_installation_image
+        fi
+
+        rm -rf "${ED}"/usr/share/doc/${P}
+        dodoc AUTHORS ChangeLog Copyright NEWS README* TODO* || die "dodoc failed"
+
+        if ! use python; then
+                rm -rf "${ED}"/usr/share/doc/${PF}/python
+                rm -rf "${ED}"/usr/share/doc/${PN}-python-${PV}
+        fi
+
+        if ! use doc; then
+                rm -rf "${ED}"/usr/share/gtk-doc
+                rm -rf "${ED}"/usr/share/doc/${PF}/html
+        fi
+
+        if ! use examples; then
+                rm -rf "${ED}/usr/share/doc/${PF}/examples"
+                rm -rf "${ED}/usr/share/doc/${PF}/python/examples"
+        fi
+}
+
+pkg_postinst() {
+        if use python; then
+                python_mod_optimize drv_libxml2.py libxml2.py
+        fi
+
+        # We don't want to do the xmlcatalog during stage1, as xmlcatalog will not
+        # be in / and stage1 builds to ROOT=/tmp/stage1root. This fixes bug #208887.
+        if [ "${ROOT}" != "/" ]
+        then
+                elog "Skipping XML catalog creation for stage building (bug #208887)."
+        else
+                # need an XML catalog, so no-one writes to a non-existent one
+                CATALOG="${EROOT}etc/xml/catalog"
+
+                # we dont want to clobber an existing catalog though,
+                # only ensure that one is there
+                # <obz@gentoo.org>
+                if [ ! -e ${CATALOG} ]; then
+                        [ -d "${EROOT}etc/xml" ] || mkdir -p "${EROOT}etc/xml"
+                        "${EPREFIX}"/usr/bin/xmlcatalog --create > ${CATALOG}
+                        einfo "Created XML catalog in ${CATALOG}"
+                fi
+        fi
+}
+
+pkg_postrm() {
+        if use python; then
+                python_mod_cleanup drv_libxml2.py libxml2.py
+        fi
+}