dev-cpp/tree: add 3.17, update homepage

Closes: https://bugs.gentoo.org/684472
Package-Manager: Portage-3.0.19, Repoman-3.0.3
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

dev-cpp/tree/Manifest

@@ -1 +1,2 @@
 DIST tree-2.81.tar.gz 1167128 BLAKE2B ea92724b16fc7ea8a5f0036f5a7a57d000d66b332b4ba46139463f707f95922f38b1d4d56a6d2fca0a3c4ece8f11e28bbf4aa6bec5c5a7bc59ccaa36a01413d6 SHA512 85e910fdb19ffd03ae79302a95ebffdb44725fd9f291a61d6912f743b54fe9b3d1c863e00c7e75d238f428946809e42c7ae6379b1051688fb06ee6c6d761d294
+DIST tree-3.17.tar.gz 1178425 BLAKE2B f59239b861c0495c48036d0fffa49370d4cd78a94bfc35348bbbe0232a3c1221293a23366a6289429adabcb00b21292288ce085fa54f74dc204537c95c5b7c37 SHA512 af11f693c13dd37dddf016751c0f975c21d7a5ad405879e18fbe5387400ee1fcfb42942ee8888efffcb0c985d7875f2698591139aeb18b4809e83e225a743112

dev-cpp/tree/tree-3.17.ebuild

@@ -0,0 +1,39 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+DOCS_BUILDER="doxygen"
+DOCS_CONFIG_NAME="doxygen_tree.config"
+DOCS_DIR="doc"
+
+inherit docs toolchain-funcs
+
+DESCRIPTION="An STL-like tree class"
+HOMEPAGE="https://github.com/kpeeters/tree.hh"
+SRC_URI="https://github.com/kpeeters/tree.hh/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${PN}.hh-${PV}"
+
+LICENSE="|| ( GPL-2 GPL-3 )"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos"
+
+src_configure() {
+	tc-export CXX
+}
+
+src_compile() {
+	docs_compile
+}
+
+src_test() {
+	cd src || die
+	emake
+	emake run_tests
+}
+
+src_install() {
+	doheader src/tree.hh src/tree_util.hh
+	dodoc -r examples
+	einstalldocs
+}