media-sound/teamspeak-client: add workaround for Qt 5.12

QtWebEngine versions before 5.12 used to reexport a few symbols like
calloc with version Qt_5 that were exported by mistake once. These are
no longer exported in 5.12 (probably a Qt bug), and teamspeak-client
does not officially support it (only the bundled QtWebEngine 5.6.1 is
supported).

Add a `overrides.so` shared library that reexports them by taking this
code from Qt under (L)GPL and preload it using LD_PRELOAD to make the
symbols available.

Closes: https://bugs.gentoo.org/675874
Signed-off-by: Denis Lisov <dennis.lissov@gmail.com>
Signed-off-by: Michał Górny <mgorny@gentoo.org>

1 files changed, 102 insertions, 0 deletions

diff --git a/media-sound/teamspeak-client/teamspeak-client-3.2.3-r2.ebuild b/media-sound/teamspeak-client/teamspeak-client-3.2.3-r2.ebuild
new file mode 100644
index 000000000000..17758f24d50c
--- /dev/null
+++ b/media-sound/teamspeak-client/teamspeak-client-3.2.3-r2.ebuild
@@ -0,0 +1,102 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit desktop toolchain-funcs unpacker xdg-utils
+
+MY_PV="${PV/_/-}"
+
+DESCRIPTION="A client software for quality voice communication via the internet"
+HOMEPAGE="https://www.teamspeak.com/"
+SRC_URI="amd64? ( http://ftp.4players.de/pub/hosted/ts3/releases/${PV}/TeamSpeak3-Client-linux_amd64-${MY_PV}.run )
+	x86? ( http://ftp.4players.de/pub/hosted/ts3/releases/${PV}/TeamSpeak3-Client-linux_x86-${MY_PV}.run )"
+
+KEYWORDS="-* ~amd64 ~x86"
+LICENSE="teamspeak3 || ( GPL-2 GPL-3 LGPL-3 )"
+SLOT="0"
+IUSE="alsa pulseaudio"
+REQUIRED_USE="|| ( alsa pulseaudio )"
+
+RDEPEND="
+	app-arch/snappy:0/1
+	=dev-libs/openssl-1.0*:*
+	dev-libs/quazip
+	dev-qt/qtcore:5
+	dev-qt/qtgui:5[accessibility,dbus,xcb]
+	dev-qt/qtnetwork:5
+	dev-qt/qtsql:5[sqlite]
+	dev-qt/qtsvg:5
+	dev-qt/qtwebchannel:5
+	dev-qt/qtwebengine:5[geolocation,widgets]
+	dev-qt/qtwidgets:5
+	net-libs/libsrtp:0
+	sys-libs/libcxx[libcxxabi]
+	sys-libs/zlib:0/1
+	virtual/udev
+	alsa? ( media-libs/alsa-lib )
+	pulseaudio? ( media-sound/pulseaudio )
+"
+
+RESTRICT="mirror"
+
+S="${WORKDIR}"
+
+QA_PREBUILT="
+	opt/teamspeak3-client/error_report
+	opt/teamspeak3-client/package_inst
+	opt/teamspeak3-client/soundbackends/libalsa_linux_*.so
+	opt/teamspeak3-client/soundbackends/libpulseaudio_linux_*.so
+	opt/teamspeak3-client/ts3client
+	opt/teamspeak3-client/update
+"
+
+PATCHES=(
+	"${FILESDIR}/${P}-qt-5.12-symbol-reexports.patch"
+)
+
+src_prepare() {
+	default
+
+	if ! use alsa; then
+		rm -f soundbackends/libalsa_linux_*.so || die
+	fi
+	if ! use pulseaudio ; then
+		rm -f soundbackends/libpulseaudio_linux_*.so || die
+	fi
+
+	mv ts3client_linux_* ts3client || die
+
+	tc-export CXX
+}
+
+src_install() {
+	exeinto /opt/teamspeak3-client
+	doexe error_report package_inst ts3client update overrides.so
+	newexe "${FILESDIR}"/ts3client-bin-r1 ts3client-bin
+
+	exeinto /opt/teamspeak3-client/soundbackends
+	doexe soundbackends/*.so
+
+	insinto /opt/teamspeak3-client
+	doins -r gfx html resources sound styles translations
+
+	dosym ../../usr/$(get_libdir)/qt5/libexec/QtWebEngineProcess /opt/teamspeak3-client/QtWebEngineProcess
+
+	dodir /opt/bin
+	dosym ../teamspeak3-client/ts3client-bin /opt/bin/ts3client
+
+	make_desktop_entry /opt/bin/ts3client "Teamspeak 3 Client" /opt/teamspeak3-client/styles/default/logo-128x128.png "Audio;AudioVideo;Network"
+
+	einstalldocs
+}
+
+pkg_postinst() {
+	xdg_desktop_database_update
+	xdg_mimeinfo_database_update
+}
+
+pkg_postrm() {
+	xdg_desktop_database_update
+	xdg_mimeinfo_database_update
+}