dev-libs/tweeny: New package.

Dependency for net-im/nheko.

Signed-off-by: Ronny (tastytea) Gutbrod <gentoo@tastytea.de>

dev-libs/tweeny/tweeny-3.1.0.ebuild

@@ -0,0 +1,37 @@
+# Copyright 2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+DESCRIPTION="C++ tweening (inbetweening) library"
+HOMEPAGE="https://mobius3.github.io/tweeny/"
+SRC_URI="https://github.com/mobius3/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="doc"
+
+RDEPEND=""
+DEPEND="${RDEPEND}"
+
+src_prepare() {
+	cmake_src_prepare
+
+	if use doc; then
+		sed -i "s@DESTINATION share/doc/Tweeny@DESTINATION share/doc/${PF}@" \
+			doc/CMakeLists.txt || die "Could not change documentation path."
+	fi
+}
+
+src_configure() {
+	local -a mycmakeargs=(
+		-DTWEENY_BUILD_EXAMPLES=NO
+		-DTWEENY_BUILD_DOCUMENTATION=$(usex doc)
+		-DTWEENY_BUILD_EXTRAS=NO
+	)
+
+	cmake_src_configure
+}