diff --git a/dev-libs/roct-thunk-interface/Manifest b/dev-libs/roct-thunk-interface/Manifest
index 71c8bfeec8398..d5b1d9ab69bc8 100644
--- a/dev-libs/roct-thunk-interface/Manifest
+++ b/dev-libs/roct-thunk-interface/Manifest
@@ -1 +1,2 @@
 DIST roct-thunk-interface-4.0.0.tar.gz 2694100 BLAKE2B 49ca128902335fc36d44b9e71d444a467bdd0b39ce0b487c70f1f68180fb4b564b10a65e26e41b71d5e66721c3086ec834aee2550246172965f2d611ce9a644a SHA512 cbb45c4372ce2620fce6ccbf94e8e7600256d12acf6721da9d22aeb619cec9d4e4e25354649b83fb322f8d369347c251ebb7242ff8fc3976cc3983de0d8e30a9
+DIST roct-thunk-interface-4.1.0.tar.gz 2697077 BLAKE2B 6d5d35c57d73c7d23fe28f438421372c1dcd51b1bcbf8720dfc993ce56a4afb3cd2c5d14185f4424436db4ce6d1d48dd5f802d0fc24ea1dd78ceb5cff7604103 SHA512 adef8c6c8f375d6d402c1066859fdb45f1e938578011fa0008ad242e1365d3672c5cb02a50f98b6f2d760269b4ef46b33a77f237521b76afe42ac883c71ecd86
diff --git a/dev-libs/roct-thunk-interface/files/roct-thunk-interface-4.1.0-append-flags.patch b/dev-libs/roct-thunk-interface/files/roct-thunk-interface-4.1.0-append-flags.patch
new file mode 100644
index 0000000000000..2f5f1c674944c
--- /dev/null
+++ b/dev-libs/roct-thunk-interface/files/roct-thunk-interface-4.1.0-append-flags.patch
@@ -0,0 +1,27 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a3a4d99..0015b0f 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -99,17 +99,17 @@ set (HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -Wl,--enable-new-dtags -Wl,--versio
+ ## Address Sanitize Flag
+ if ( ${ADDRESS_SANITIZER} )
+     set ( HSAKMT_C_FLAGS "${HSAKMT_C_FLAGS}" -fsanitize=address )
+-    set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS}" -fsanitize=address )
++    set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -fsanitize=address ")
+     if ( BUILD_SHARED_LIBS )
+-        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS}" -shared-libsan )
++        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -shared-libsan ")
+     else ()
+-        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS}" -static-libsan )
++        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -static-libsan ")
+     endif ()
+ else ()
+     if ( CMAKE_COMPILER_IS_GNUCC )
+-        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS}" -Wl,-no-undefined )
++        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -Wl,-no-undefined ")
+     else ()
+-        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS}" -Wl,-undefined,error )
++        set ( HSAKMT_LINK_FLAGS "${HSAKMT_LINK_FLAGS} -Wl,-undefined,error ")
+     endif ()
+ endif ()
+ 
diff --git a/dev-libs/roct-thunk-interface/roct-thunk-interface-4.0.0.ebuild b/dev-libs/roct-thunk-interface/roct-thunk-interface-4.0.0.ebuild
index ee5be506ed835..3cbf10ed4cd62 100644
--- a/dev-libs/roct-thunk-interface/roct-thunk-interface-4.0.0.ebuild
+++ b/dev-libs/roct-thunk-interface/roct-thunk-interface-4.0.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
diff --git a/dev-libs/roct-thunk-interface/roct-thunk-interface-4.1.0.ebuild b/dev-libs/roct-thunk-interface/roct-thunk-interface-4.1.0.ebuild
new file mode 100644
index 0000000000000..16e23a2d974cf
--- /dev/null
+++ b/dev-libs/roct-thunk-interface/roct-thunk-interface-4.1.0.ebuild
@@ -0,0 +1,39 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake linux-info
+
+if [[ ${PV} == *9999 ]] ; then
+	EGIT_REPO_URI="https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/"
+	inherit git-r3
+else
+	SRC_URI="https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/archive/rocm-${PV}.tar.gz -> ${P}.tar.gz"
+	S="${WORKDIR}/ROCT-Thunk-Interface-rocm-${PV}"
+	KEYWORDS="~amd64"
+fi
+
+DESCRIPTION="Radeon Open Compute Thunk Interface"
+HOMEPAGE="https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface"
+CONFIG_CHECK="~HSA_AMD ~HMM_MIRROR ~ZONE_DEVICE ~DRM_AMDGPU ~DRM_AMDGPU_USERPTR"
+LICENSE="MIT"
+SLOT="0/$(ver_cut 1-2)"
+
+RDEPEND="sys-process/numactl"
+DEPEND="${RDEPEND}"
+
+PATCHES=(
+	"${FILESDIR}/roct-thunk-interface-4.1.0-append-flags.patch"
+)
+
+src_prepare() {
+	sed -e "s:get_version ( \"1.0.0\" ):get_version ( \"${PV}\" ):" -i CMakeLists.txt || die
+	cmake_src_prepare
+}
+src_configure() {
+	local mycmakeargs=(
+		-DCPACK_PACKAGING_INSTALL_PREFIX="${EPREFIX}/usr"
+	)
+	cmake_src_configure
+}