Add synfigstudio 1.4.0

Original ebuilds are from bgo-overlay and eroen
Upstream appeares to have switched to autoconf

media-gfx/synfigstudio/synfigstudio-1.4.0.ebuild

@@ -0,0 +1,41 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# Original ebuild By eroen <eroen-overlay@occam.eroen.eu>, 2018
+# Modified by <ceamac.paragon@gmail.com>, 2020
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+
+EAPI=7
+
+inherit autotools eutils multilib flag-o-matic
+
+DESCRIPTION="Vector animation studio"
+HOMEPAGE="https://www.synfig.org"
+SRC_URI="https://github.com/synfig/synfig/releases/download/v${PV}/${P}.tar.gz"
+
+LICENSE="GPL-2+ CC-BY-3.0"
+
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+
+RDEPEND="
+	media-gfx/synfig
+	dev-libs/libsigc++:2
+	dev-cpp/gtkmm:3.0
+	dev-cpp/libxmlpp:2.6
+	sys-devel/gettext
+	"
+DEPEND="${RDEPEND}
+	dev-cpp/ETL
+	virtual/pkgconfig
+	"
+
+src_prepare() {
+	eapply_user
+
+	default
+	eautoreconf
+}