dev-libs/expat: update to 2.4.6

Update dev-libs/expat to 2.4.6 to mainly address the CVEs:
CVE-2022-25235, CVE-2022-25236, CVE-2022-25313, CVE-2022-25314,
CVE-2022-25315

sdk_container/src/third_party/portage-stable/dev-libs/expat/Manifest

@@ -1,2 +1,3 @@
-DIST expat-2.4.3.tar.xz 451012 BLAKE2B 4c0200837ea0054a88d2a2606486482f234e4b4f6b5f16134bf2a4b7b61457b12d534c6be3f16d28f6926f896d00177ef53a947a0a6c3ad11ff024a8e76edf84 SHA512 62a7fe751f6846deec4b04fd2c2ca8ed9e139fa27cda0e3fe7f8f05107caaed70597aed17b45c49d30a60c8a0c6beae1317dd5f24240640310951aabb16dbcb7
 DIST expat-2.4.4.tar.xz 449448 BLAKE2B 20b2cfb27746c24e56580478c933b3ca9e9ff19aed13561bc07e8ad879daff575882b8940fdca00f8c99b146067438a4a680238728098b10e4d08303ffa00119 SHA512 c88a82f4732e27340eb9480c082bcc909b0284e16b368ee9feeb4e2dd058e8f7c42fd48feacd5272cc76cb78bd183df33eb5d0b135fdd1d3c493cb156572ab76
+DIST expat-2.4.5.tar.xz 451976 BLAKE2B d4ef7dda9da0f0f0be112b1aab551b10414e27692a5d83de67ba53298f60ea2a08872de4a9baee3596eff56f275866dbe18cb93a927bbf43952ceff633d9e28f SHA512 9e010e8959b9182db0fdcd3453c06d5b892db85da0d9f2db19384cc9a05d70066dc927c40fc98ada430e0548a47fa863866985193062af9bd243de9bdac417f5
+DIST expat-2.4.6.tar.xz 452468 BLAKE2B 8b30acc2628e3ce67ee57a4c9bee232f89f49ee70901588f7f5a34844e459cbc447fd225a734078100e52c96a73aa1f016e4f2d51d9a079128d661d97b2213c0 SHA512 830b00dbdfb92ef5cab69d783762a78443cd7d834bccda072d103c6178327cf480bde579089b1c3be884e67ddb862178fa734bd7e1f992f6f0ca29d83e21d737

sdk_container/src/third_party/portage-stable/dev-libs/expat/expat-2.4.4.ebuild

@@ -12,7 +12,7 @@ SRC_URI="https://github.com/libexpat/libexpat/releases/download/R_${PV//\./_}/ex
 
 LICENSE="MIT"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
 IUSE="examples static-libs unicode"
 BDEPEND="unicode? ( ${AUTOTOOLS_DEPEND} )"
 

sdk_container/src/third_party/portage-stable/dev-libs/expat/expat-2.4.5.ebuild

@@ -0,0 +1,94 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+AUTOTOOLS_AUTO_DEPEND=no
+AT_NOEAUTOHEADER=yes  # because expat_config.h.in would need post-processing
+inherit autotools multilib-minimal
+
+DESCRIPTION="Stream-oriented XML parser library"
+HOMEPAGE="https://libexpat.github.io/"
+SRC_URI="https://github.com/libexpat/libexpat/releases/download/R_${PV//\./_}/expat-${PV}.tar.xz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
+IUSE="examples static-libs unicode"
+BDEPEND="unicode? ( ${AUTOTOOLS_DEPEND} )"
+
+DOCS=( README.md )
+
+src_prepare() {
+	default
+
+	# fix interpreter to be a recent/good shell
+	sed -i -e "1s:/bin/sh:${BASH}:" conftools/get-version.sh || die
+	if use unicode; then
+		cp -R "${S}" "${S}"w || die
+		pushd "${S}"w >/dev/null
+		find -name Makefile.am \
+			-exec sed \
+			-e 's,libexpat\.la,libexpatw.la,' \
+			-e 's,libexpat_la,libexpatw_la,' \
+			-i {} + || die
+		eautoreconf
+		popd >/dev/null
+	fi
+}
+
+multilib_src_configure() {
+	local myconf="$(use_enable static-libs static) --without-docbook"
+
+	mkdir -p "${BUILD_DIR}"w || die
+
+	if use unicode; then
+		pushd "${BUILD_DIR}"w >/dev/null
+		CPPFLAGS="${CPPFLAGS} -DXML_UNICODE" ECONF_SOURCE="${S}"w econf ${myconf}
+		popd >/dev/null
+	fi
+
+	ECONF_SOURCE="${S}" econf ${myconf}
+}
+
+multilib_src_compile() {
+	emake
+
+	if use unicode; then
+		pushd "${BUILD_DIR}"w >/dev/null
+		emake -C lib
+		popd >/dev/null
+	fi
+}
+
+multilib_src_install() {
+	emake install DESTDIR="${D}"
+
+	if use unicode; then
+		pushd "${BUILD_DIR}"w >/dev/null
+		emake -C lib install DESTDIR="${D}"
+		popd >/dev/null
+
+		pushd "${ED}"/usr/$(get_libdir)/pkgconfig >/dev/null
+		cp expat.pc expatw.pc
+		sed -i -e '/^Libs/s:-lexpat:&w:' expatw.pc || die
+		popd >/dev/null
+	fi
+}
+
+multilib_src_install_all() {
+	einstalldocs
+
+	doman doc/xmlwf.1
+
+	# Note: Use of HTML_DOCS would add unwanted "doc" subfolder
+	docinto html
+	dodoc doc/*.{css,html}
+
+	if use examples; then
+		docinto examples
+		dodoc examples/*.c
+		docompress -x usr/share/doc/${PF}/examples
+	fi
+
+	find "${D}" -name '*.la' -type f -delete || die
+}