diff --git a/dev-scheme/gambit/gambit-4.8.8-r2.ebuild b/dev-scheme/gambit/gambit-4.8.8-r2.ebuild
index 76a2291343a4c..2984102efa0db 100644
--- a/dev-scheme/gambit/gambit-4.8.8-r2.ebuild
+++ b/dev-scheme/gambit/gambit-4.8.8-r2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit elisp-common
+inherit flag-o-matic elisp-common
 
 MY_PV="${PV//./_}"
 MY_P="${PN}-v${MY_PV}"
@@ -30,6 +30,9 @@ S="${WORKDIR}/${MY_P}" #-devel
 IUSE="emacs ssl static"
 
 src_configure() {
+	# bug #858254
+	filter-lto
+
 	econf \
 		$(use_enable !static shared) \
 		$(use_enable ssl openssl) \
diff --git a/dev-scheme/gambit/gambit-4.9.3-r2.ebuild b/dev-scheme/gambit/gambit-4.9.3-r2.ebuild
index 76a2291343a4c..2984102efa0db 100644
--- a/dev-scheme/gambit/gambit-4.9.3-r2.ebuild
+++ b/dev-scheme/gambit/gambit-4.9.3-r2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit elisp-common
+inherit flag-o-matic elisp-common
 
 MY_PV="${PV//./_}"
 MY_P="${PN}-v${MY_PV}"
@@ -30,6 +30,9 @@ S="${WORKDIR}/${MY_P}" #-devel
 IUSE="emacs ssl static"
 
 src_configure() {
+	# bug #858254
+	filter-lto
+
 	econf \
 		$(use_enable !static shared) \
 		$(use_enable ssl openssl) \
diff --git a/dev-scheme/gambit/gambit-4.9.4-r1.ebuild b/dev-scheme/gambit/gambit-4.9.4-r1.ebuild
index c0d39c4470929..2668544ec3165 100644
--- a/dev-scheme/gambit/gambit-4.9.4-r1.ebuild
+++ b/dev-scheme/gambit/gambit-4.9.4-r1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit elisp-common
+inherit flag-o-matic elisp-common
 
 DESCRIPTION="Gambit-C is a native Scheme to C compiler and interpreter"
 HOMEPAGE="http://www.iro.umontreal.ca/~gambit/"
@@ -28,6 +28,9 @@ DOCS=( INSTALL.txt README README.md )
 SITEFILE="50gambit-gentoo.el"
 
 src_configure() {
+	# bug #858254
+	filter-lto
+
 	local myconf=(
 		$(use_enable !static shared)
 		$(use_enable ssl openssl)