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Bug 386651 - dev-libs/totem-pl-parser does not build against quvi 0.4
Summary: dev-libs/totem-pl-parser does not build against quvi 0.4
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Development (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Linux Gnome Desktop Team
URL: https://bugzilla.gnome.org/show_bug.c...
Whiteboard:
Keywords:
: 386655 386755 (view as bug list)
Depends on:
Blocks:
 
Reported: 2011-10-10 13:33 UTC by Marien Zwart (RETIRED)
Modified: 2011-10-19 07:20 UTC (History)
34 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
update to new quvi api (totem-pl-parser-2.32.6-quvi-0.4.patch,720 bytes, patch)
2011-10-10 13:35 UTC, Marien Zwart (RETIRED)
Details | Diff

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Description Marien Zwart (RETIRED) gentoo-dev 2011-10-10 13:33:56 UTC
quvi-0.4 removed some deprecated names from the installed headers, causing a build failure in USE=quvi totem-pl-parser. The attached patch fixes it, and should work with quvi >= 0.2.15 (the version that deprecated the old API while introducing the new one). As 0.2.15 is the stable version that dependency seems acceptable.

Reproducible: Always

Steps to Reproduce:
1. Upgrade to libquvi-0.4
2. emerge totem-pl-parser (required by revdep-rebuild/preserved-libs) with USE=quvi (required by totem)

Actual Results:  
totem-pl-parser-videosite.c: In function 'totem_pl_parser_add_videosite':
totem-pl-parser-videosite.c:78:2: error: 'quvi_video_t' undeclared (first use in this function)
totem-pl-parser-videosite.c:78:2: note: each undeclared identifier is reported only once for each function it appears in
totem-pl-parser-videosite.c:78:15: error: expected ';' before 'v'
totem-pl-parser-videosite.c:97:32: error: 'v' undeclared (first use in this function)
totem-pl-parser-videosite.c:107:23: error: 'QUVIPROP_VIDEOURL' undeclared (first use in this function)
totem-pl-parser-videosite.c:108:23: error: 'QUVIPROP_VIDEOFILELENGTH' undeclared (first use in this function)
make[4]: *** [libtotem_plparser_la-totem-pl-parser-videosite.lo] Error 1


Expected Results:  
>>> dev-libs/totem-pl-parser-2.32.6 merged.


Portage 2.2.0_alpha65 (default/linux/amd64/10.0/desktop/gnome, gcc-4.5.3, glibc-2.13-r4, 3.0.6-gentoo-m4-new-idmapper x86_64)
=================================================================
System uname: Linux-3.0.6-gentoo-m4-new-idmapper-x86_64-AMD_Athlon-tm-_II_X4_640_Processor-with-gentoo-2.1
Timestamp of tree: Mon, 10 Oct 2011 11:15:01 +0000
ccache version 3.1.6 [enabled]
app-shells/bash:          4.2_p10
dev-java/java-config:     2.1.11-r3
dev-lang/python:          2.6.7-r2, 2.7.2-r3, 3.1.4-r3, 3.2.2
dev-util/ccache:          3.1.6
dev-util/cmake:           2.8.5-r2
dev-util/pkgconfig:       0.26
sys-apps/baselayout:      2.1
sys-apps/openrc:          0.9.3-r1
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.68
sys-devel/automake:       1.10.3, 1.11.1-r1
sys-devel/binutils:       2.21.1-r1
sys-devel/gcc:            4.5.3-r1
sys-devel/gcc-config:     1.4.1-r1
sys-devel/libtool:        2.4-r3
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 2.6.39 (virtual/os-headers)
sys-libs/glibc:           2.13-r4
Repositories: gentoo cross gamerlay-stable gnome bitcoin marienz
Installed sets: 
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="* -@EULA AdobeFlash-10.1 google-talkplugin"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-ggdb -O2 -march=amdfam10 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-ggdb -O2 -march=amdfam10 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs cached-virtuals candy ccache collision-protect distlocks ebuild-locks fixlafiles fixpackages news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict test unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox verify-rdepend"
FFLAGS=""
GENTOO_MIRRORS="http://ftp.snt.utwente.nl/pub/linux/gentoo/"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="en en_GB en_US nl fy fy_NL"
MAKEOPTS="-j4"
PKGDIR="/var/tmp/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage/cross /usr/local/portage/layman/gamerlay /usr/local/portage/layman/gnome /usr/local/portage/layman/bitcoin /usr/local/portage/private"
SYNC="rsync://rsync.nl.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac acpi alsa amd64 apng avahi bluetooth branding bzip2 cairo caps cdda cdr cli colord consolekit crypt cups cxx dbus doc dri dts dvd dvdr dvi emacs emboss encode equalizer evo exif expat ffmpeg firefox flac fontconfig fortran fuse gif gmp gnome gnome-keyring gpg gstreamer gtk gtk3 gtkstyle iconv idn imap inotify ipv6 irc jpeg lame latex lcms libcaca libffi libnotify llvm lua lvm lzma maildir mmx mmxext mng modules mp3 mp4 mpeg multilib nautilus ncurses nfsidmap nls nptl nptlonly ntfsprogs objc offensive ogg opengl openmp pam pam_krb5 pango pch pdf playlist png policykit ppds pppd preview-latex pulseaudio python qemu qt3support qt4 readline realtime session sip speex spell spice sqlite sse sse2 sse3 ssl startup-notification svg sysfs test theora tokyocabinet toolkit-scroll-bars tools truetype udev udis86 unicode urwid usb vala vhost-net vorbis vpx wxwidgets x264 xattr xcb xcomposite xft xinerama xml xorg xulrunner xv xvfb zlib zsh-completion" ALSA_CARDS="hda_intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="plymouth caps lvm" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en en_GB en_US nl fy fy_NL" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" SANE_BACKENDS="plustek plustek_pp" USERLAND="GNU" VIDEO_CARDS="radeon r600" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Comment 1 Marien Zwart (RETIRED) gentoo-dev 2011-10-10 13:35:40 UTC
Created attachment 289447 [details, diff]
update to new quvi api

Whoops, forgot to actually attach the patch.
Comment 2 Marien Zwart (RETIRED) gentoo-dev 2011-10-10 13:57:31 UTC
*** Bug 386655 has been marked as a duplicate of this bug. ***
Comment 3 Pacho Ramos gentoo-dev 2011-10-10 18:45:33 UTC
Please report this to upstream also: bugzilla.gnome.org
Comment 4 Henrique Dias 2011-10-10 19:28:39 UTC
I have the same problem after upgrade the quvi package to 0.4 :(

# emerge emerge dev-libs/totem-pl-parser
...

/bin/sh ../libtool --silent --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I../plparse -DGNOMELOCALEDIR=\""/usr/share/locale"\"    -pthread -D_LARGEFILE64_SOURCE -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libsoup-gnome-2.4 -I/usr/include/libsoup-2.4 -I/usr/include/gmime-2.4     -Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-sign-compare   -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -I../lib -D_GNU_SOURCE -Wall 	-Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 	-Wnested-externs -Wpointer-arith 	-Wcast-align -Wsign-compare 	-fno-strict-aliasing 	-march=nocona -O2 -pipe -c -o libtotem_plparser_la-totem-pl-parser-qt.lo `test -f 'totem-pl-parser-qt.c' || echo './'`totem-pl-parser-qt.c
  CC     libtotem_plparser_la-totem-pl-parser-smil.lo
/bin/sh ../libtool --silent --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I../plparse -DGNOMELOCALEDIR=\""/usr/share/locale"\"    -pthread -D_LARGEFILE64_SOURCE -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libsoup-gnome-2.4 -I/usr/include/libsoup-2.4 -I/usr/include/gmime-2.4     -Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-sign-compare   -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -I../lib -D_GNU_SOURCE -Wall 	-Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 	-Wnested-externs -Wpointer-arith 	-Wcast-align -Wsign-compare 	-fno-strict-aliasing 	-march=nocona -O2 -pipe -c -o libtotem_plparser_la-totem-pl-parser-smil.lo `test -f 'totem-pl-parser-smil.c' || echo './'`totem-pl-parser-smil.c
  CC     libtotem_plparser_la-totem-pl-parser-videosite.lo
/bin/sh ../libtool --silent --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I../plparse -DGNOMELOCALEDIR=\""/usr/share/locale"\"    -pthread -D_LARGEFILE64_SOURCE -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libsoup-gnome-2.4 -I/usr/include/libsoup-2.4 -I/usr/include/gmime-2.4     -Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-sign-compare   -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -I../lib -D_GNU_SOURCE -Wall 	-Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 	-Wnested-externs -Wpointer-arith 	-Wcast-align -Wsign-compare 	-fno-strict-aliasing 	-march=nocona -O2 -pipe -c -o libtotem_plparser_la-totem-pl-parser-videosite.lo `test -f 'totem-pl-parser-videosite.c' || echo './'`totem-pl-parser-videosite.c
  CC     libtotem_plparser_la-totem-pl-parser-wm.lo
/bin/sh ../libtool --silent --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I../plparse -DGNOMELOCALEDIR=\""/usr/share/locale"\"    -pthread -D_LARGEFILE64_SOURCE -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libsoup-gnome-2.4 -I/usr/include/libsoup-2.4 -I/usr/include/gmime-2.4     -Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-sign-compare   -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -I../lib -D_GNU_SOURCE -Wall 	-Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 	-Wnested-externs -Wpointer-arith 	-Wcast-align -Wsign-compare 	-fno-strict-aliasing 	-march=nocona -O2 -pipe -c -o libtotem_plparser_la-totem-pl-parser-wm.lo `test -f 'totem-pl-parser-wm.c' || echo './'`totem-pl-parser-wm.c
  CC     libtotem_plparser_la-totem-pl-parser-xspf.lo
/bin/sh ../libtool --silent --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I..  -I.. -I../lib -I../plparse -DGNOMELOCALEDIR=\""/usr/share/locale"\"    -pthread -D_LARGEFILE64_SOURCE -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 -I/usr/include/libsoup-gnome-2.4 -I/usr/include/libsoup-2.4 -I/usr/include/gmime-2.4     -Wall -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wno-sign-compare   -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -I../lib -D_GNU_SOURCE -Wall 	-Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes 	-Wnested-externs -Wpointer-arith 	-Wcast-align -Wsign-compare 	-fno-strict-aliasing 	-march=nocona -O2 -pipe -c -o libtotem_plparser_la-totem-pl-parser-xspf.lo `test -f 'totem-pl-parser-xspf.c' || echo './'`totem-pl-parser-xspf.c
totem-pl-parser-videosite.c: In function 'totem_pl_parser_add_videosite':
totem-pl-parser-videosite.c:78:2: error: 'quvi_video_t' undeclared (first use in this function)
totem-pl-parser-videosite.c:78:2: note: each undeclared identifier is reported only once for each function it appears in
totem-pl-parser-videosite.c:78:15: error: expected ';' before 'v'
totem-pl-parser-videosite.c:97:32: error: 'v' undeclared (first use in this function)
totem-pl-parser-videosite.c:107:2: error: 'QUVIPROP_VIDEOURL' undeclared (first use in this function)
totem-pl-parser-videosite.c:108:23: error: 'QUVIPROP_VIDEOFILELENGTH' undeclared (first use in this function)
make[4]: *** [libtotem_plparser_la-totem-pl-parser-videosite.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
make[4]: Leaving directory `/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6/plparse'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6/plparse'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6/plparse'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6'
make: *** [all] Error 2
 * ERROR: dev-libs/totem-pl-parser-2.32.6 failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of 'emerge --info =dev-libs/totem-pl-parser-2.32.6',
 * the complete build log and the output of 'emerge -pqv =dev-libs/totem-pl-parser-2.32.6'.
 * The complete build log is located at '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/temp/environment'.
 * S: '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6'

>>> Failed to emerge dev-libs/totem-pl-parser-2.32.6, Log file:

>>>  '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/temp/build.log'

 * Messages for package dev-libs/totem-pl-parser-2.32.6:

 * ERROR: dev-libs/totem-pl-parser-2.32.6 failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of 'emerge --info =dev-libs/totem-pl-parser-2.32.6',
 * the complete build log and the output of 'emerge -pqv =dev-libs/totem-pl-parser-2.32.6'.
 * The complete build log is located at '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/temp/environment'.
 * S: '/var/tmp/portage/dev-libs/totem-pl-parser-2.32.6/work/totem-pl-parser-2.32.6'
Comment 5 godmachine (Lance Poore) 2011-10-11 05:28:46 UTC
I can confirm that this patch works with {lib}quvi-0.4.0 and totem-pl-parser-2.32.6  

I just got the updates to quvi and had preserved rebuild for totem-pl-parser which failed. After editing the ebuild to use 'epatch_user' and placing the patch in /etc/portage/patches/dev-libs/totem-pl-parser-2.32.6/    everything worked without any further issues.
Comment 6 Juergen Rose 2011-10-11 14:42:05 UTC
Hi,
the patch worked for me, but I did it in the conventional way, i.e. I added a line 	
epatch  "${FILESDIR}/${P}-quvi-0.4.patch"
to src_prepare() in the totem-pl-parser-2.32.6.ebuild. The way of comment 5 is new for me. How have I to edit the ebuild to use 'epatch_user' and the patch in /etc/portage/patches/dev-libs/? And what is the advantage? If I have to edit the ebuild, I think it is not a essential difference to insert a epatch line or to insert a epatch_user line.

Regards Juergen
Comment 7 Pacho Ramos gentoo-dev 2011-10-11 17:39:15 UTC
*** Bug 386755 has been marked as a duplicate of this bug. ***
Comment 8 Ooblick 2011-10-11 20:41:12 UTC
I'm now seeing rhythmbox and totem fail to start, I think due to this bug:

$ rhythmbox
rhythmbox: error while loading shared libraries: libquvi.so.6: cannot open shared object file: No such file or directory
$ sudo emerge -1 rhythmbox
...
  CCLD   librbpodcast.la
/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: warning: libquvi.so.6, needed by /usr/lib64/libtotem-plparser.so, not found (try using -rpath or -rpath-link)
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_init@VER_0.1.0'
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_parse@VER_0.1.0'
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_supported@VER_0.1.0'
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_getprop@VER_0.1.0'
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_parse_close@VER_0.1.0'
/usr/lib64/libtotem-plparser.so: undefined reference to `quvi_close@VER_0.1.0'
collect2: ld returned 1 exit status
make[2]: *** [test-podcast-parse] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory `/tmp/portage/media-sound/rhythmbox-0.13.3/work/rhythmbox-0.13.3/podcast'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/portage/media-sound/rhythmbox-0.13.3/work/rhythmbox-0.13.3'
make: *** [all] Error 2
$ sudo emerge -1 totem-pl-parser
totem-pl-parser-videosite.c: In function ‘totem_pl_parser_add_videosite’:
totem-pl-parser-videosite.c:78:2: error: ‘quvi_video_t’ undeclared (first use in this function
Comment 9 A Sotirov 2011-10-13 07:08:40 UTC
I can also confirm the patch works. media-sound/rhythmbox-0.13.3 which was broken due to this bug works as well.
Comment 10 Lee Trager 2011-10-15 06:45:21 UTC
I can confirm too that this patch fixes the issue for me.
Comment 11 Peter Asplund 2011-10-16 20:18:59 UTC
Same for me, the patch fixed it.
Comment 12 Brandon Penglase 2011-10-17 01:38:05 UTC
I was getting the same error, and I too can confirm that the patch fixes the problem.
Comment 13 arnk 2011-10-19 06:38:55 UTC
I also can confirm that patch works for me too.
Comment 14 Alexandre Rostovtsev (RETIRED) gentoo-dev 2011-10-19 07:20:05 UTC
> *totem-pl-parser-2.32.6-r1 (19 Oct 2011)
> 
>  19 Oct 2011; Alexandre Rostovtsev <tetromino@gentoo.org>
>   +totem-pl-parser-2.32.6-r1.ebuild,
>   +files/totem-pl-parser-2.32.6-quvi-0.4.patch:
>   Change dependency from quvi to libquvi per Tim Harder's recommendation (and
>   drop keywords accordingly). Add libquvi-0.4 compatibility patch (deprecated
>   "video" interface was removed during libquvi-0.2.20 development); fixes
>   bug #386651. Many thanks to Marien Zwart for the patch and to the many users
>   in the bug's CC list for testing. Patch has not yet been applied upstream
>   (see https://bugzilla.gnome.org/show_bug.cgi?id=661451), but is obviously
>   correct by inspection.