diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/flex/files/flex-2.6.4-fix-malloc-prototype.patch b/sdk_container/src/third_party/portage-stable/sys-devel/flex/files/flex-2.6.4-fix-malloc-prototype.patch
new file mode 100644
index 0000000000..9ded7cd40e
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/flex/files/flex-2.6.4-fix-malloc-prototype.patch
@@ -0,0 +1,26 @@
+Bug: https://bugs.gentoo.org/956581
+https://github.com/westes/flex/pull/674
+https://github.com/westes/flex/commit/4b142954b54a57a9b0af0a9661056a9c39a8fa95
+
+From bf254c75b1e0d2641ebbd7fc85fb183f36a62ea7 Mon Sep 17 00:00:00 2001
+From: Richard Barnes <rbarnes@umn.edu>
+Date: Wed, 2 Oct 2024 10:35:09 -0700
+Subject: [PATCH] Match `malloc` signature to its use
+
+---
+ lib/malloc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/malloc.c b/lib/malloc.c
+index 75e8ef97c..701b9b39d 100755
+--- a/lib/malloc.c
++++ b/lib/malloc.c
+@@ -3,7 +3,7 @@
+      
+      #include <sys/types.h>
+      
+-     void *malloc ();
++     void *malloc (size_t n);
+      
+      /* Allocate an N-byte block of memory from the heap.
+         If N is zero, allocate a 1-byte block.  */
diff --git a/sdk_container/src/third_party/portage-stable/sys-devel/flex/flex-2.6.4-r6.ebuild b/sdk_container/src/third_party/portage-stable/sys-devel/flex/flex-2.6.4-r6.ebuild
index 41845f105a..3a5e1b6a64 100644
--- a/sdk_container/src/third_party/portage-stable/sys-devel/flex/flex-2.6.4-r6.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-devel/flex/flex-2.6.4-r6.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit flag-o-matic libtool multilib-minimal toolchain-funcs
+inherit dot-a flag-o-matic libtool multilib-minimal toolchain-funcs
 
 DESCRIPTION="The Fast Lexical Analyzer"
 HOMEPAGE="https://github.com/westes/flex"
@@ -29,6 +29,7 @@ PATCHES=(
 	"${FILESDIR}"/${P}-libobjdir.patch
 	"${FILESDIR}"/${P}-fix-build-with-glibc2.26.patch
 	"${FILESDIR}"/${P}-fix-apple-m1-crash-by-explicit-pointer-cast.patch
+	"${FILESDIR}"/${P}-fix-malloc-prototype.patch
 
 	"${WORKDIR}"/${P}-autotools-regenerate.patch
 )
@@ -53,7 +54,7 @@ src_prepare() {
 
 src_configure() {
 	use static && append-ldflags -static
-
+	lto-guarantee-fat
 	multilib-minimal_src_configure
 }
 
@@ -86,6 +87,7 @@ multilib_src_install() {
 }
 
 multilib_src_install_all() {
+	strip-lto-bytecode
 	einstalldocs
 	dodoc ONEWS
 	find "${ED}" -name '*.la' -type f -delete || die