diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.9999.ebuild b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.9999.ebuild
index f689432648..3c840be5f3 100644
--- a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.9999.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.9999.ebuild
@@ -398,6 +398,16 @@ src_test() {
 		# Tests don't expect LTO
 		filter-lto
 
+		# If we have e.g. -mfpmath=sse -march=pentium4 in CFLAGS,
+		# we'll get lto1 warnings for some tests which cause
+		# spurious failures because -mfpmath isn't passed at
+		# link-time. Filter accordingly.
+		#
+		# Alternatively, we could pass C{C,XX}_FOR_TARGET with
+		# some (ideally not all, surely would break some tests)
+		# stuffed in.
+		filter-flags '-mfpmath=*'
+
 		# lto-wrapper warnings which confuse tests
 		filter-flags '-Wa,*'
 
diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.ebuild b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.ebuild
index 6628fbed5b..d8629b626d 100644
--- a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-2.44.ebuild
@@ -35,7 +35,7 @@ else
 	[[ -z ${PATCH_VER} ]] || SRC_URI="${SRC_URI}
 		https://dev.gentoo.org/~${PATCH_DEV}/distfiles/binutils-${PATCH_BINUTILS_VER}-patches-${PATCH_VER}.tar.xz"
 	SLOT=$(ver_cut 1-2)
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~loong ~m68k ~mips ~ppc ppc64 ~riscv ~s390 sparc x86"
 fi
 
 #
@@ -398,6 +398,16 @@ src_test() {
 		# Tests don't expect LTO
 		filter-lto
 
+		# If we have e.g. -mfpmath=sse -march=pentium4 in CFLAGS,
+		# we'll get lto1 warnings for some tests which cause
+		# spurious failures because -mfpmath isn't passed at
+		# link-time. Filter accordingly.
+		#
+		# Alternatively, we could pass C{C,XX}_FOR_TARGET with
+		# some (ideally not all, surely would break some tests)
+		# stuffed in.
+		filter-flags '-mfpmath=*'
+
 		# lto-wrapper warnings which confuse tests
 		filter-flags '-Wa,*'
 
diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-9999.ebuild b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-9999.ebuild
index bf8d3eccb2..65d9f15ce0 100644
--- a/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-9999.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/binutils/binutils-9999.ebuild
@@ -398,6 +398,16 @@ src_test() {
 		# Tests don't expect LTO
 		filter-lto
 
+		# If we have e.g. -mfpmath=sse -march=pentium4 in CFLAGS,
+		# we'll get lto1 warnings for some tests which cause
+		# spurious failures because -mfpmath isn't passed at
+		# link-time. Filter accordingly.
+		#
+		# Alternatively, we could pass C{C,XX}_FOR_TARGET with
+		# some (ideally not all, surely would break some tests)
+		# stuffed in.
+		filter-flags '-mfpmath=*'
+
 		# lto-wrapper warnings which confuse tests
 		filter-flags '-Wa,*'