diff --git a/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-4.8.0.ebuild b/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-4.8.0.ebuild
index 56f978208622a..533406fd90a44 100644
--- a/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-4.8.0.ebuild
+++ b/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-4.8.0.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit cmake
+inherit cmake dot-a
 
 # Use ../hercules-sdl/files/gen_hashes.sh to identify the relevant
 # commit when tagging new versions.
@@ -18,3 +18,13 @@ LICENSE="icu"
 SLOT="0"
 KEYWORDS="amd64 ppc64"
 PATCHES=( "${FILESDIR}/cmakefix.patch" )
+
+src_configure() {
+	lto-guarantee-fat
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	strip-lto-bytecode
+}
diff --git a/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-9999.ebuild b/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-9999.ebuild
index 6c8be1db358a5..8438afda8e156 100644
--- a/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-9999.ebuild
+++ b/app-emulation/hercules-sdl-decnumber/hercules-sdl-decnumber-9999.ebuild
@@ -1,9 +1,9 @@
-# Copyright 2022-2023 Gentoo Authors
+# Copyright 2022-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit git-r3 cmake
+inherit git-r3 cmake dot-a
 
 DESCRIPTION="ANSI C General Decimal Arithmetic Library"
 HOMEPAGE="https://github.com/SDL-Hercules-390/decNumber"
@@ -12,3 +12,13 @@ EGIT_REPO_URI="https://github.com/SDL-Hercules-390/decNumber"
 LICENSE="icu"
 SLOT="0"
 PATCHES=( "${FILESDIR}/cmakefix.patch" )
+
+src_configure() {
+	lto-guarantee-fat
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	strip-lto-bytecode
+}