diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/libb2/Manifest b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/Manifest
new file mode 100644
index 0000000000..bb6333e12e
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/Manifest
@@ -0,0 +1 @@
+DIST libb2-0.98.1.tar.gz 280826 BLAKE2B aa8c3dee3032f457410479be12d00c79a6ca6a7c0376a5c70265d30ff25b50663171f7096141834d4faa4dd5027f38b23b774e59be63475a3ecba855337fb1aa SHA512 a666fdbd1efa9cfff3028e953c62f21ba092c6733ccd12d4d04f1f836fc9747fc90053bc9166510d251d332b91e133853d2cc9b61c279517bd65b05e8483250b
diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/libb2/files/libb2-0.98.1-distcc.patch b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/files/libb2-0.98.1-distcc.patch
new file mode 100644
index 0000000000..2e6a167178
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/files/libb2-0.98.1-distcc.patch
@@ -0,0 +1,16 @@
+https://bugs.gentoo.org/704044#c8
+
+Patch by Alexey
+
+--- a/src/Makefile.am	2020-04-26 11:16:22.354103351 +0100
++++ b/src/Makefile.am	2020-04-26 11:16:31.584080899 +0100
+@@ -18,8 +18,7 @@ LDFLAGS += -version-info $(B2_LIBRARY_VE
+ lib_LTLIBRARIES = libb2.la
+ libb2_la_LIBADD = # -lgomp -lpthread
+ libb2_la_CPPFLAGS =  -DSUFFIX=  \
+-                     $(LTDLINCL) \
+-                     ${top_builddir}/src/
++                     $(LTDLINCL)
+ 
+ include_HEADERS = blake2.h
+ 
diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r2.ebuild b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r2.ebuild
new file mode 100644
index 0000000000..2b1d540995
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r2.ebuild
@@ -0,0 +1,69 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools multilib-minimal toolchain-funcs
+
+DESCRIPTION="C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp"
+HOMEPAGE="https://github.com/BLAKE2/libb2"
+GITHASH="73d41c8255a991ed2adea41c108b388d9d14b449"
+SRC_URI="https://github.com/BLAKE2/libb2/archive/${GITHASH}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="CC0-1.0"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="static-libs native-cflags openmp"
+
+DEPEND="
+	openmp? (
+		|| ( >=sys-devel/gcc-4.2:*[openmp] sys-devel/clang-runtime:*[openmp] )
+	)
+"
+RDEPEND="${DEPEND}"
+
+S=${WORKDIR}/${PN}-${GITHASH}
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+src_prepare() {
+	default
+	# fix bashism
+	sed -i -e 's/ == / = /' configure.ac || die
+	# https://github.com/BLAKE2/libb2/pull/28
+	echo 'libb2_la_LDFLAGS = -no-undefined' >> src/Makefile.am || die
+	eautoreconf  # upstream doesn't make releases
+}
+
+multilib_src_configure() {
+	ECONF_SOURCE=${S} \
+	econf \
+		$(use_enable static-libs static) \
+		$(use_enable native-cflags native) \
+		$(use_enable openmp)
+}
+
+do_make() {
+	# respect our CFLAGS when native-cflags is not in effect
+	local openmp=$(use openmp && echo -fopenmp)
+	emake $(use native-cflags && echo no)CFLAGS="${CFLAGS} ${openmp}" "$@"
+}
+
+multilib_src_compile() {
+	do_make
+}
+
+multilib_src_test() {
+	do_make check
+}
+
+multilib_src_install_all() {
+	einstalldocs
+	find "${ED}" -name '*.la' -type f -delete || die
+}
diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r3.ebuild b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r3.ebuild
new file mode 100644
index 0000000000..f810cc600e
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/libb2-0.98.1-r3.ebuild
@@ -0,0 +1,71 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools multilib-minimal toolchain-funcs
+
+DESCRIPTION="C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp"
+HOMEPAGE="https://github.com/BLAKE2/libb2"
+GITHASH="73d41c8255a991ed2adea41c108b388d9d14b449"
+SRC_URI="https://github.com/BLAKE2/libb2/archive/${GITHASH}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="CC0-1.0"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="static-libs native-cflags openmp"
+
+DEPEND="
+	openmp? (
+		|| ( >=sys-devel/gcc-4.2:*[openmp] sys-devel/clang-runtime:*[openmp] )
+	)
+"
+RDEPEND="${DEPEND}"
+
+S=${WORKDIR}/${PN}-${GITHASH}
+
+PATCHES=( "${FILESDIR}"/${P}-distcc.patch )
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+src_prepare() {
+	default
+	# fix bashism
+	sed -i -e 's/ == / = /' configure.ac || die
+	# https://github.com/BLAKE2/libb2/pull/28
+	echo 'libb2_la_LDFLAGS = -no-undefined' >> src/Makefile.am || die
+	eautoreconf  # upstream doesn't make releases
+}
+
+multilib_src_configure() {
+	ECONF_SOURCE=${S} \
+	econf \
+		$(use_enable static-libs static) \
+		$(use_enable native-cflags native) \
+		$(use_enable openmp)
+}
+
+do_make() {
+	# respect our CFLAGS when native-cflags is not in effect
+	local openmp=$(use openmp && echo -fopenmp)
+	emake $(use native-cflags && echo no)CFLAGS="${CFLAGS} ${openmp}" "$@"
+}
+
+multilib_src_compile() {
+	do_make
+}
+
+multilib_src_test() {
+	do_make check
+}
+
+multilib_src_install_all() {
+	einstalldocs
+	find "${ED}" -name '*.la' -type f -delete || die
+}
diff --git a/sdk_container/src/third_party/portage-stable/app-crypt/libb2/metadata.xml b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/metadata.xml
new file mode 100644
index 0000000000..1b45c3a4d1
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/app-crypt/libb2/metadata.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>grobian@gentoo.org</email>
+		<name>Fabian Groffen</name>
+	</maintainer>
+	<longdescription lang="en">
+		C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp
+
+		Official implementations from BLAKE2 project.
+	</longdescription>
+	<use>
+		<flag name="native-cflags">
+		Use CFLAGS as determined by configure script.  These flags will
+		enable all CPU specific features it find available, to further
+		optimise the implementation.  This discards any existing CFLAGS
+		set in make.conf or similar.
+		</flag>
+	</use>
+	<upstream>
+		<remote-id type="github">BLAKE2/libb2</remote-id>
+	</upstream>
+</pkgmetadata>