dev-libs/libxml2: workaround py3 issues for itstool

Bug: https://bugs.gentoo.org/701020
Package-Manager: Portage-2.3.79, Repoman-2.3.12
Signed-off-by: Mart Raudsepp <leio@gentoo.org>

2 files changed, 261 insertions, 0 deletions

diff --git a/dev-libs/libxml2/files/2.9.9-python3-unicode-errors.patch b/dev-libs/libxml2/files/2.9.9-python3-unicode-errors.patch
new file mode 100644
index 000000000000..e87dcdedf88c
--- /dev/null
+++ b/dev-libs/libxml2/files/2.9.9-python3-unicode-errors.patch
@@ -0,0 +1,34 @@
+Index: libxml2-2.9.5/python/libxml.c
+===================================================================
+--- libxml2-2.9.5.orig/python/libxml.c
++++ libxml2-2.9.5/python/libxml.c
+@@ -1620,6 +1620,7 @@ libxml_xmlErrorFuncHandler(ATTRIBUTE_UNU
+     PyObject *message;
+     PyObject *result;
+     char str[1000];
++    unsigned char *ptr = (unsigned char *)str;
+ 
+ #ifdef DEBUG_ERROR
+     printf("libxml_xmlErrorFuncHandler(%p, %s, ...) called\n", ctx, msg);
+@@ -1636,12 +1637,20 @@ libxml_xmlErrorFuncHandler(ATTRIBUTE_UNU
+ 	    str[999] = 0;
+         va_end(ap);
+ 
++#if PY_MAJOR_VERSION >= 3
++        /* Ensure the error string doesn't start at UTF8 continuation. */
++        while (*ptr && (*ptr & 0xc0) == 0x80)
++            ptr++;
++#endif
++
+         list = PyTuple_New(2);
+         PyTuple_SetItem(list, 0, libxml_xmlPythonErrorFuncCtxt);
+         Py_XINCREF(libxml_xmlPythonErrorFuncCtxt);
+-        message = libxml_charPtrConstWrap(str);
++        message = libxml_charPtrConstWrap(ptr);
+         PyTuple_SetItem(list, 1, message);
+         result = PyEval_CallObject(libxml_xmlPythonErrorFuncHandler, list);
++        /* Forget any errors caused in the error handler. */
++        PyErr_Clear();
+         Py_XDECREF(list);
+         Py_XDECREF(result);
+     }
diff --git a/dev-libs/libxml2/libxml2-2.9.9-r3.ebuild b/dev-libs/libxml2/libxml2-2.9.9-r3.ebuild
new file mode 100644
index 000000000000..5f7f29a15de8
--- /dev/null
+++ b/dev-libs/libxml2/libxml2-2.9.9-r3.ebuild
@@ -0,0 +1,227 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python2_7 python3_{5,6,7,8} )
+PYTHON_REQ_USE="xml"
+
+inherit libtool flag-o-matic python-r1 autotools prefix multilib-minimal
+
+DESCRIPTION="XML C parser and toolkit"
+HOMEPAGE="http://www.xmlsoft.org/"
+
+LICENSE="MIT"
+SLOT="2"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sh ~sparc ~x86 ~ppc-aix ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+IUSE="debug examples icu ipv6 lzma python readline static-libs test"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+RESTRICT="!test? ( test )"
+
+XSTS_HOME="http://www.w3.org/XML/2004/xml-schema-test-suite"
+XSTS_NAME_1="xmlschema2002-01-16"
+XSTS_NAME_2="xmlschema2004-01-14"
+XSTS_TARBALL_1="xsts-2002-01-16.tar.gz"
+XSTS_TARBALL_2="xsts-2004-01-14.tar.gz"
+XMLCONF_TARBALL="xmlts20080827.tar.gz"
+
+SRC_URI="ftp://xmlsoft.org/${PN}/${PN}-${PV/_rc/-rc}.tar.gz
+	https://dev.gentoo.org/~leio/distfiles/${P}-patchset.tar.xz
+	test? (
+		${XSTS_HOME}/${XSTS_NAME_1}/${XSTS_TARBALL_1}
+		${XSTS_HOME}/${XSTS_NAME_2}/${XSTS_TARBALL_2}
+		http://www.w3.org/XML/Test/${XMLCONF_TARBALL} )"
+
+RDEPEND="
+	>=sys-libs/zlib-1.2.8-r1:=[${MULTILIB_USEDEP}]
+	icu? ( >=dev-libs/icu-51.2-r1:=[${MULTILIB_USEDEP}] )
+	lzma? ( >=app-arch/xz-utils-5.0.5-r1:=[${MULTILIB_USEDEP}] )
+	python? ( ${PYTHON_DEPS} )
+	readline? ( sys-libs/readline:= )
+"
+DEPEND="${RDEPEND}
+	dev-util/gtk-doc-am
+	virtual/pkgconfig
+	hppa? ( >=sys-devel/binutils-2.15.92.0.2 )
+"
+
+S="${WORKDIR}/${PN}-${PV%_rc*}"
+
+MULTILIB_CHOST_TOOLS=(
+	/usr/bin/xml2-config
+)
+
+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/_rc/-rc}.tar.gz
+	unpack ${P}-patchset.tar.xz
+	cd "${S}" || die
+
+	if use test; then
+		cp "${DISTDIR}/${XSTS_TARBALL_1}" \
+			"${DISTDIR}/${XSTS_TARBALL_2}" \
+			"${S}"/xstc/ \
+			|| die "Failed to install test tarballs"
+		unpack ${XMLCONF_TARBALL}
+	fi
+}
+
+src_prepare() {
+	default
+
+	DOCS=( AUTHORS ChangeLog NEWS README* TODO* )
+
+	# Selective cherry-picks from master up to 2019-02-28 (commit 8161b463f5)
+	eapply "${WORKDIR}"/patches
+
+	# Patches needed for prefix support
+	eapply "${FILESDIR}"/${PN}-2.7.1-catalog_path.patch
+
+	eprefixify catalog.c xmlcatalog.c runtest.c xmllint.c
+
+	# Fix build for Windows platform
+	# https://bugzilla.gnome.org/show_bug.cgi?id=760456
+	# eapply "${FILESDIR}"/${PN}-2.8.0_rc1-winnt.patch
+
+	# Fix python detection, bug #567066
+	# https://bugzilla.gnome.org/show_bug.cgi?id=760458
+	eapply "${FILESDIR}"/${PN}-2.9.2-python-ABIFLAG.patch
+
+	# Fix python tests when building out of tree #565576
+	eapply "${FILESDIR}"/${PN}-2.9.8-out-of-tree-test.patch
+
+	# Workaround python3 itstool potential problems, bug 701020
+	eapply "${FILESDIR}"/${PV}-python3-unicode-errors.patch
+
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		# Avoid final linking arguments for python modules
+		sed -i -e '/PYTHON_LIBS/s/ldflags/libs/' configure.ac || die
+		# gcc-apple doesn't grok -Wno-array-bounds
+		sed -i -e 's/-Wno-array-bounds//' configure.ac || die
+	fi
+
+	# Please do not remove, as else we get references to PORTAGE_TMPDIR
+	# in /usr/lib/python?.?/site-packages/libxml2mod.la among things.
+	# We now need to run eautoreconf at the end to prevent maintainer mode.
+#	elibtoolize
+#	epunt_cxx # if we don't eautoreconf
+
+	eautoreconf
+}
+
+multilib_src_configure() {
+	# filter seemingly problematic CFLAGS (#26320)
+	filter-flags -fprefetch-loop-arrays -funroll-loops
+
+	# USE zlib support breaks gnome2
+	# (libgnomeprint for instance fails to compile with
+	# fresh install, and existing) - <azarah@gentoo.org> (22 Dec 2002).
+
+	# The meaning of the 'debug' USE flag does not apply to the --with-debug
+	# switch (enabling the libxml2 debug module). See bug #100898.
+
+	# --with-mem-debug causes unusual segmentation faults (bug #105120).
+
+	libxml2_configure() {
+		ECONF_SOURCE="${S}" econf \
+			--with-html-subdir=${PF}/html \
+			$(use_with debug run-debug) \
+			$(use_with icu) \
+			$(use_with lzma) \
+			$(use_enable ipv6) \
+			$(use_enable static-libs static) \
+			$(multilib_native_use_with readline) \
+			$(multilib_native_use_with readline history) \
+			"$@"
+	}
+
+	libxml2_py_configure() {
+		mkdir -p "${BUILD_DIR}" || die # ensure python build dirs exist
+		run_in_build_dir libxml2_configure \
+			"--with-python=${EPYTHON}" \
+			"--with-python-install-dir=$(python_get_sitedir)"
+			# odd build system, also see bug #582130
+	}
+
+	libxml2_configure --without-python # build python bindings separately
+
+	if multilib_is_native_abi && use python; then
+		python_foreach_impl libxml2_py_configure
+	fi
+}
+
+multilib_src_compile() {
+	default
+	if multilib_is_native_abi && use python; then
+		local native_builddir=${BUILD_DIR}
+		python_foreach_impl libxml2_py_emake top_builddir="${native_builddir}" all
+	fi
+}
+
+multilib_src_test() {
+	ln -s "${S}"/xmlconf || die
+	emake check
+	multilib_is_native_abi && use python && python_foreach_impl libxml2_py_emake test
+}
+
+multilib_src_install() {
+	emake DESTDIR="${D}" \
+		EXAMPLES_DIR="${EPREFIX}"/usr/share/doc/${PF}/examples install
+
+	if multilib_is_native_abi && use python; then
+		python_foreach_impl libxml2_py_emake \
+			DESTDIR="${D}" \
+			docsdir="${EPREFIX}"/usr/share/doc/${PF}/python \
+			exampledir="${EPREFIX}"/usr/share/doc/${PF}/python/examples \
+			install
+		python_foreach_impl python_optimize
+	fi
+}
+
+multilib_src_install_all() {
+	# 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 "${ED}"/usr/bin/xmlcatalog
+	fi
+
+	rm -rf "${ED}"/usr/share/doc/${P}
+	einstalldocs
+
+	if ! use examples; then
+		rm -rf "${ED}"/usr/share/doc/${PF}/examples
+		rm -rf "${ED}"/usr/share/doc/${PF}/python/examples
+	fi
+
+	find "${D}" -name '*.la' -delete || die
+}
+
+pkg_postinst() {
+	# 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 ${CATALOG}"
+		fi
+	fi
+}
+
+libxml2_py_emake() {
+	pushd "${BUILD_DIR}/python" > /dev/null || die
+	emake "$@"
+	popd > /dev/null
+}