sci-astronomy/celestia: Drop USE gtk, switch to cmake.eclass

gtk still depended on ancient x11-libs/gtkglext.

Bug: https://bugs.gentoo.org/644334
Package-Manager: Portage-2.3.84, Repoman-2.3.20
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

sci-astronomy/celestia/celestia-9999.ebuild

@@ -1,26 +1,25 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
 
-inherit desktop flag-o-matic xdg cmake-utils
-
-DESCRIPTION="OpenGL 3D space simulator"
-HOMEPAGE="https://celestia.space"
 if [[ "${PV}" = 9999 ]] ; then
 	inherit git-r3
 	EGIT_REPO_URI="https://github.com/CelestiaProject/Celestia.git"
 else
-	# Old URI! Please update once we have a release > v1.6.1
-	SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz"
+	SRC_URI="https://github.com/${PN^}Project/${PN^}/archive/${PV/_/-}.tar.gz -> ${P}.tar.gz"
 	KEYWORDS="~amd64 ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux"
 fi
+inherit desktop flag-o-matic xdg cmake
+
+DESCRIPTION="OpenGL 3D space simulator"
+HOMEPAGE="https://celestia.space"
 
 LICENSE="GPL-2"
 SLOT="0"
-IUSE="glut gtk nls +qt5 theora"
+IUSE="glut nls +qt5 theora"
 
-REQUIRED_USE="|| ( glut gtk qt5 )"
+REQUIRED_USE="|| ( glut qt5 )"
 
 BDEPEND="
 	dev-cpp/eigen
@@ -36,12 +35,6 @@ DEPEND="
 	virtual/jpeg:0
 	virtual/opengl
 	glut? ( media-libs/freeglut )
-	gtk? (
-		x11-libs/gtk+:2
-		>=x11-libs/gtkglext-1.0
-		x11-libs/gdk-pixbuf:2
-		x11-libs/pango
-	)
 	qt5? (
 		dev-qt/qtcore:5
 		dev-qt/qtgui:5
@@ -62,7 +55,7 @@ PATCHES=(
 )
 
 src_prepare() {
-	cmake-utils_src_prepare
+	cmake_src_prepare
 
 	filter-flags "-funroll-loops -frerun-loop-opt"
 
@@ -79,16 +72,16 @@ src_configure() {
 		-DENABLE_CELX=ON
 		-DENABLE_NLS="$(usex nls)"
 		-DENABLE_GLUT="$(usex glut)"
-		-DENABLE_GTK="$(usex gtk)"
+		-DENABLE_GTK=OFF
 		-DENABLE_QT="$(usex qt5)"
 		-DENABLE_WIN=OFF
 		-DENABLE_THEORA="$(usex theora)"
 	)
-	cmake-utils_src_configure
+	cmake_src_configure
 }
 
 src_install() {
-	cmake-utils_src_install
+	cmake_src_install
 
 	local size
 	for size in 16 22 32 48 ; do
@@ -96,15 +89,12 @@ src_install() {
 	done
 
 	use glut && domenu ${PN}.desktop
-	local ui
-	for ui in gtk qt5 ; do
-		if use ${ui} ; then
-			sed \
-				-e "/^Name/s@\$@ (${ui} interface)@" \
-				-e "/^Exec/s@${PN}@${PN}-${ui/qt5/qt}@" \
-				${PN}.desktop > "${T}"/${PN}-${ui}.desktop || die
-			domenu "${T}"/${PN}-${ui}.desktop
-		fi
-	done
+	if use qt5 ; then
+		sed \
+			-e "/^Name/s@\$@ (qt5 interface)@" \
+			-e "/^Exec/s@${PN}@${PN}-${ui/qt5/qt}@" \
+			${PN}.desktop > "${T}"/${PN}-qt5.desktop || die
+		domenu "${T}"/${PN}-qt5.desktop
+	fi
 	dodoc AUTHORS README TRANSLATORS *.txt
 }