--- qtcore-5.13.2.ebuild	2019-12-22 16:26:40.421915603 +0800
+++ qtcore-5.13.2-r1.ebuild	2019-12-22 16:43:45.734465171 +0800
@@ -11,7 +11,7 @@
 	KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~sparc ~x86"
 fi
 
-IUSE="icu systemd"
+IUSE="icu systemd +kernel-3_17"
 
 DEPEND="
 	dev-libs/double-conversion:=
@@ -59,6 +59,8 @@
 src_configure() {
 	local myconf=(
 		-no-feature-statx	# bug 672856
+		$(qt_use kernel-3_17 feature-renameat2)
+		$(qt_use kernel-3_17 feature-getentropy)
 		$(qt_use icu)
 		$(qt_use !icu iconv)
 		$(qt_use systemd journald)