--- /usr/portage/dev-util/perf/perf-4.20.3.ebuild	2019-01-19 07:09:36.000000000 +0900
+++ perf-4.20.3.ebuild	2019-02-04 14:30:22.183801863 +0900
@@ -35,12 +35,15 @@
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux"
-IUSE="audit clang crypt debug +demangle +doc gtk java lzma numa perl python slang systemtap unwind zlib"
+IUSE="audit clang crypt debug +demangle +doc gtk java libressl lzma numa perl python slang systemtap unwind zlib"
 # TODO babeltrace
 REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
 
 RDEPEND="audit? ( sys-process/audit )
-	crypt? ( dev-libs/openssl:0= )
+	crypt? (
+		!libressl? ( dev-libs/openssl:0= )
+		libressl? ( dev-libs/libressl:0= )
+	)
 	clang? (
 		sys-devel/clang:*
 		sys-devel/llvm:*