diff --git a/sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r2.ebuild b/sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r3.ebuild
similarity index 77%
rename from sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r2.ebuild
rename to sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r3.ebuild
index bedd0f6043..9efc87278b 100644
--- a/sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r2.ebuild
+++ b/sdk_container/src/third_party/portage-stable/app-arch/lbzip2/lbzip2-2.5_p20181227-r3.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit autotools flag-o-matic
+inherit autotools flag-o-matic toolchain-funcs
 
 DESCRIPTION="Parallel bzip2 utility"
 HOMEPAGE="https://github.com/kjn/lbzip2/"
@@ -29,6 +29,10 @@ src_prepare() {
 src_configure() {
 	use static && append-ldflags -static
 
+	# fix clang miscompilation: #910438
+	# see also: https://github.com/llvm/llvm-project/issues/87189
+	tc-is-clang && test-flag-CC -mno-avx512f && append-cflags -mno-avx512f
+
 	local myeconfargs=(
 		$(use_enable debug tracing)
 	)