dev-libs/olm: add python use to 3.1.5 and remove 3.1.4

Package-Manager: Portage-3.0.4, Repoman-3.0.1
Signed-off-by: Alfred Wingate <parona@protonmail.com>

dev-libs/olm/Manifest

@@ -1,2 +1 @@
-DIST olm-3.1.4.tar.bz2 461540 BLAKE2B fa69b1543330c5da37c04227b51197ba57968ef24def40df621b85c0988eac91f8a155f600ab26849f2cd213059c97c7035be6dcca0943245cd4e4895da314b3 SHA512 87265d835ca7332d162bd3573dffdd09c8337c464dd673f100db9193e8ea4cedd8cb2a92cf2c34ad1b552a55bbbce8f87a47559ccfba03fa69b32fc7ff07f5f0
 DIST olm-3.1.5.tar.bz2 461855 BLAKE2B 20412686ea1621de0d45885ae6f44331389cb401410809901187431eb101113f4186dc5b31c055da15143bec70f2251ee506e4fb50b0a8e495bdfa6cdb302b9e SHA512 a41be45e3fadb4e24654a4db8a68dab7fb8b021aeaf48b524d9c2c1e9d48e0b2200b9f1ac8431e79bc620560b16c66fb4c2d3727901b47b78288ea22b3f6ba02

dev-libs/olm/metadata.xml

@@ -1,4 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
+	<maintainer type="person">
+		<email> parona@protonmail.com </email>
+		<name> Alfred Wingate </name>
+	</maintainer>
+	<maintainer type="person">
+		<email>hedmoo@yahoo.com</email>
+		<name>Andreas Westman Dorcsak</name>
+	</maintainer>
 </pkgmetadata>

dev-libs/olm/olm-3.1.5-r1.ebuild

@@ -3,7 +3,10 @@
 
 EAPI=7
 
-inherit cmake
+PYTHON_COMPAT=( python3_{6,7,8,9} )
+DISTUTILS_OPTIONAL=1
+
+inherit cmake distutils-r1
 
 DESCRIPTION="An implementation of the Double Ratchet cryptographic ratchet in C++"
 HOMEPAGE="https://git.matrix.org/git/olm/about/"
@@ -18,4 +21,26 @@ fi
 
 LICENSE="GPL-3"
 SLOT="0/$(ver_cut 1)"
-IUSE=""
+IUSE="python"
+
+DEPEND="
+	python? (
+		dev-python/cffi[${PYTHON_USEDEP}]
+		dev-python/future[${PYTHON_USEDEP}]
+	)
+"
+
+src_prepare() {
+	cmake_src_prepare
+	use python && (cd python; distutils-r1_src_prepare)
+}
+
+src_compile() {
+	cmake_src_compile
+	use python && (cd python; distutils-r1_src_compile)
+}
+
+src_install() {
+	cmake_src_install
+	use python && (cd python; distutils-r1_src_install)
+}