x11-libs/gtksourceview: Version bump to 4.8.1

Closes: https://bugs.gentoo.org/732784
Signed-off-by: Matt Turner <mattst88@gentoo.org>

x11-libs/gtksourceview/Manifest

@@ -1,3 +1,4 @@
 DIST gtksourceview-2.10.5.tar.bz2 1253321 BLAKE2B 810a3eeca69bab4356b21c64129bb852e00d02c7937ad4a2ce3af9e48700da943d8d6834efcce9810dd49a54f39d4a074dc086a557128da51a593b2f23e58d48 SHA512 6f64acef6196bfc5953e0b148d7e460d366073b5e21367c01b01fc4d1c86ffe8aca71ecd77cf0814e47d8fc3085495f25bbbdc69e746987b02fd02fcda64886d
 DIST gtksourceview-3.24.11.tar.xz 1438232 BLAKE2B a25762255a12887c8151465689e3acbd5864a6638044500acd087832888a092b8aad5d885d31c9dbe057ce183510afa2342bccb2a2675719dbba7e82be72368a SHA512 3490b34c6432a2e2ef292ad5bf982fdd22d33b1472434549b4ea8ddae0fc8808e128ef947e4d0dcb41e8de5e601b202f52532bbbbfa11d35050acfc42f9936b2
 DIST gtksourceview-4.6.1.tar.xz 1162024 BLAKE2B 41f84dade9e48cc958fecbf887f4c733cb1631557be34e52ca5af39802455f115e9920d368406314299aad35b1d18995c4e403f0ec3a9b3a27254fd1952f37e3 SHA512 3341e6248a0abba6373a79742b4348d8aff58ca6a4b9093729d0d1fe2579ab8acbc61f1ecc6d350000edae60c963eeca866fa659b3f3d6ec320cdbf1ed21fdec
+DIST gtksourceview-4.8.1.tar.xz 1160032 BLAKE2B 3ed93f056ca8c6ae1982e28a675ccec448c301999f058abc5b9ec46f609c2649ac807fc20379480a8eb00408496912e1554e08d55ce5da70a97cee34be10fc20 SHA512 fe3bc05e81f881b97a53e6dfb807ded314f1953ebe74424b515d6c1333e72011e3b756b958cca40becad0f66434cf16c56d42fff950b8d643e65c9a03e9cb88b

x11-libs/gtksourceview/gtksourceview-4.8.1.ebuild

@@ -0,0 +1,70 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit gnome.org meson vala virtualx xdg
+
+DESCRIPTION="A text widget implementing syntax highlighting and other features"
+HOMEPAGE="https://wiki.gnome.org/Projects/GtkSourceView"
+
+LICENSE="LGPL-2.1+"
+SLOT="4"
+
+IUSE="glade gtk-doc +introspection +vala"
+REQUIRED_USE="vala? ( introspection )"
+
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-solaris"
+
+RDEPEND="
+	>=dev-libs/glib-2.48:2
+	>=x11-libs/gtk+-3.24:3[introspection?]
+	>=dev-libs/libxml2-2.6:2
+	glade? ( >=dev-util/glade-3.9:3.10 )
+	introspection? ( >=dev-libs/gobject-introspection-1.42.0:= )
+	>=dev-libs/fribidi-0.19.7
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	dev-util/glib-utils
+	gtk-doc? (
+		>=dev-util/gtk-doc-1.25
+		app-text/docbook-xml-dtd:4.3
+	)
+	>=sys-devel/gettext-0.19.8
+	virtual/pkgconfig
+	vala? ( $(vala_depend) )
+"
+
+src_prepare() {
+	use vala && vala_src_prepare
+	xdg_src_prepare
+}
+
+src_configure() {
+	local emesonargs=(
+		$(meson_use glade glade_catalog)
+		-Dinstall_tests=false
+		$(meson_use introspection gir)
+		$(meson_use vala vapi)
+		$(meson_use gtk-doc gtk_doc)
+	)
+	meson_src_configure
+}
+
+src_test() {
+	virtx meson_src_test
+}
+
+src_install() {
+	meson_src_install
+
+	insinto /usr/share/${PN}-4/language-specs
+	newins "${FILESDIR}"/4.6-gentoo.lang gentoo.lang
+
+	# Avoid conflict with gtksourceview:3.0 glade-catalog
+	# TODO: glade doesn't actually show multiple GtkSourceView widget collections, so with both installed, can't really be sure which ones are used
+	if use glade; then
+		mv "${ED}"/usr/share/glade/catalogs/gtksourceview.xml "${ED}"/usr/share/glade/catalogs/gtksourceview-${SLOT}.xml || die
+	fi
+}