media-video/aegisub: Fix startup on Wayland

Closes: https://bugs.gentoo.org/946851

Signed-off-by: Nick Sarnie <sarnex@gentoo.org>

media-video/aegisub/aegisub-3.4.2-r2.ebuild

@@ -0,0 +1,147 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LUA_COMPAT=( luajit )
+LUA_REQ_USE="lua52compat"
+
+WX_GTK_VER=3.2-gtk3
+PLOCALES="ar be bg ca cs da de el es eu fa fi fr_FR gl hu id it ja ko nl pl pt_BR pt_PT ru sr_RS sr_RS@latin tr uk_UA vi zh_CN zh_TW"
+
+inherit meson flag-o-matic lua-single plocale wxwidgets xdg-utils vcs-snapshot toolchain-funcs
+
+DESCRIPTION="Advanced subtitle editor"
+HOMEPAGE="http://www.aegisub.org/ https://github.com/TypesettingTools/Aegisub"
+
+if [[ ${PV} == *9999 ]]; then
+	EGIT_REPO_URI="https://github.com/TypesettingTools/${PN^}.git"
+	# Submodules are used to pull bundled libraries.
+	EGIT_SUBMODULES=()
+	inherit git-r3
+else
+	SRC_URI="https://github.com/TypesettingTools/Aegisub/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~amd64 ~x86"
+fi
+LICENSE="BSD MIT"
+SLOT="0"
+IUSE="+alsa debug +fftw openal portaudio pulseaudio spell test +uchardet"
+REQUIRED_USE="
+	${LUA_REQUIRED_USE}
+	|| ( alsa openal portaudio pulseaudio )"
+RESTRICT="test"
+
+# aegisub bundles luabins (https://github.com/agladysh/luabins).
+# Unfortunately, luabins upstream is practically dead since 2010.
+# Thus unbundling luabins isn't worth the effort.
+RDEPEND="${LUA_DEPS}
+	x11-libs/wxGTK:${WX_GTK_VER}=[X,opengl,debug?]
+	dev-libs/boost:=[icu,nls]
+	dev-libs/icu:=
+	media-libs/ffmpegsource:=
+	media-libs/fontconfig
+	media-libs/freetype
+	media-libs/libass:=[fontconfig]
+	sys-libs/zlib
+	virtual/libiconv
+	virtual/opengl
+	alsa? ( media-libs/alsa-lib )
+	fftw? ( >=sci-libs/fftw-3.3:= )
+	openal? ( media-libs/openal )
+	portaudio? ( =media-libs/portaudio-19* )
+	pulseaudio? ( media-libs/libpulse )
+	spell? ( app-text/hunspell:= )
+	uchardet? ( app-i18n/uchardet )
+"
+DEPEND="${RDEPEND}"
+# luarocks is only used as a command-line tool so there is no need to enforce
+# LUA_SINGLE_USEDEP on it. On the other hand, this means we must use version
+# bounds in order to make sure we use a version migrated to Lua eclasses.
+BDEPEND="
+	sys-devel/gettext
+	virtual/pkgconfig
+	test? (
+		${RDEPEND}
+		>=dev-cpp/gtest-1.8.1
+		>=dev-lua/luarocks-3.4.0-r100
+		$(lua_gen_cond_dep '
+			dev-lua/busted[${LUA_USEDEP}]
+		')
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}"/3.4.2/Fix-build-without-pch.patch
+	"${FILESDIR}"/3.4.2/Fix-wayland.patch
+)
+
+BUILD_DIR="${WORKDIR}/${P}-build"
+
+aegisub_check_compiler() {
+	if [[ ${MERGE_TYPE} != "binary" ]] && ! test-flag-CXX -std=c++20; then
+		die "Your compiler lacks C++20 support."
+	fi
+}
+
+pkg_pretend() {
+	aegisub_check_compiler
+}
+
+pkg_setup() {
+	aegisub_check_compiler
+	lua-single_pkg_setup
+}
+
+src_prepare() {
+	default_src_prepare
+
+	# Remove tests that require unavailable uuid Lua module.
+	rm automation/tests/modules/lfs.moon || die
+
+	remove_locale() {
+	        sed -i -e "s/^${1}\(@latin\)\?//g" po/LINGUAS || die
+		rm "po/${1}.po" || die
+	}
+
+	plocale_find_changes 'po' '' '.po'
+	plocale_for_each_disabled_locale remove_locale
+	sed -i "s|#ifdef WITH_UPDATE_CHECKER| #if WITH_UPDATE_CHECKER == 1|g" "${S}"/src/dialog_version_check.cpp \
+	                                                      "${S}"/src/command/app.cpp "${S}"/src/main.cpp || die
+	use test || sed -i "s|subdir('tests')||g" "${S}"/meson.build || die
+
+	mkdir "${BUILD_DIR}" || die
+	cp "${FILESDIR}/${PV}"/git_version.h "${BUILD_DIR}"/git_version.h || die
+}
+
+src_configure() {
+	tc-export PKG_CONFIG
+	use debug && EMESON_BUILDTYPE=debug
+	setup-wxwidgets
+	local emesonargs=(
+	        -Denable_update_checker=false
+		-Dffms2=enabled
+		-Dsystem_luajit=true
+		$(meson_feature alsa)
+		$(meson_feature fftw fftw3)
+		$(meson_feature openal)
+		$(meson_feature portaudio)
+		$(meson_feature pulseaudio libpulse)
+		$(meson_feature spell hunspell)
+		$(meson_feature uchardet)
+	)
+	meson_src_configure
+}
+
+src_test() {
+	meson_src_test test-libaegisub
+}
+
+pkg_postinst() {
+	xdg_icon_cache_update
+	xdg_desktop_database_update
+}
+
+pkg_postrm() {
+	xdg_icon_cache_update
+	xdg_desktop_database_update
+}

media-video/aegisub/files/3.4.2/Fix-wayland.patch

@@ -0,0 +1,34 @@
+From 17ea2947a24ed87df5a6842deb561b01c9643601 Mon Sep 17 00:00:00 2001
+From: EL_File4138 <elfile4138@elfile4138.moe>
+Date: Mon, 12 May 2025 00:48:35 +0200
+Subject: [PATCH] fix: Fallback to X11 if lacks EGL support
+
+This should fix #233. It's recurring and is hard to fix in the downstream package.
+Fixing is trivial.
+---
+ src/main.cpp | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
+
+diff --git a/src/main.cpp b/src/main.cpp
+index 65dbb4529c..c5d7e50ab1 100644
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -95,6 +95,18 @@ void AegisubApp::OnAssertFailure(const wxChar *file, int line, const wxChar *fun
+ AegisubApp::AegisubApp() {
+ 	// http://trac.wxwidgets.org/ticket/14302
+ 	wxSetEnv("UBUNTU_MENUPROXY", "0");
++
++	// Fallback to X11 if wxGTK implementation is build without Wayland EGL support
++	// Fix https://github.com/TypesettingTools/Aegisub/issues/233
++	#if defined(__WXGTK__) && !wxUSE_GLCANVAS_EGL
++		wxString xdg_session_type = wxGetenv("XDG_SESSION_TYPE");
++		wxString wayland_display  = wxGetenv("WAYLAND_DISPLAY");
++
++		if (xdg_session_type == "wayland" || wayland_display.Contains("wayland")) {
++			wxSetEnv("GDK_BACKEND", "x11");
++		}
++	#endif
++
+ }
+ 
+ namespace {