On Mon, 26 Oct 2015 21:50:40 +0000 Chris Lamb <[email protected]> wrote: > yelp fails to build from source in unstable/amd64. (Whilst it segfaults, > I think this actually is due to the lack of an $DISPLAY - see the > warnings. Perhaps something like xvfb is needed?) > > [..] > > gtkdoc-scangobj $scanobj_options --module=libyelp; \ > else \ > for i in libyelp.args libyelp.hierarchy libyelp.interfaces > libyelp.prerequisites libyelp.signals ; do \ > test -f $i || touch $i ; \ > done \ > fi > > (process:14998): Gtk-CRITICAL **: gtk_icon_theme_get_for_screen: > assertion 'GDK_IS_SCREEN (screen)' failed > > ** (process:14998): WARNING **: Unable to connect to dbus: Cannot > autolaunch D-Bus without X11 $DISPLAY > Segmentation fault
After looking into this further, I noticed that the build failure happened after the switch from webkit to webkit2. The gtk-doc scanner is linked against libwebkit2gtk-4.0, and this is where it segfaults if DISPLAY is unset. What I did is the following, build the package with unset DISPLAY, then run gdb docs/libyelp/.libs/lt-libyelp-scan The resulting backtrace is attached. Berto, Gustavo, any ideas? Should we clone this bug and reassign to webkit2gtk? Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
Starting program:
/home/michael/debian/build-area/yelp-3.20.1/docs/libyelp/.libs/lt-libyelp-scan
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffa25ff700 (LWP 3277)]
[New Thread 0x7fffa1dfe700 (LWP 3278)]
Program received signal SIGSEGV, Segmentation fault.
0x00007fffea66bd84 in XCloseDisplay () from
/usr/lib/x86_64-linux-gnu/libX11.so.6
#0 0x00007fffea66bd84 in XCloseDisplay () from
/usr/lib/x86_64-linux-gnu/libX11.so.6
No symbol table info available.
#1 0x00007ffff4eab831 in WebCore::PlatformDisplayX11::~PlatformDisplayX11
(this=0x7fffe2dfc028,
__in_chrg=<optimized out>)
at
/build/webkit2gtk-ea7lQt/webkit2gtk-2.12.1/Source/WebCore/platform/graphics/x11/PlatformDisplayX11.cpp:53
No locals.
#2 0x00007ffff4eab849 in WebCore::PlatformDisplayX11::~PlatformDisplayX11
(this=0x7fffe2dfc028,
__in_chrg=<optimized out>)
at
/build/webkit2gtk-ea7lQt/webkit2gtk-2.12.1/Source/WebCore/platform/graphics/x11/PlatformDisplayX11.cpp:54
No locals.
#3 0x00007ffff70aee08 in __run_exit_handlers (status=0, listp=0x7ffff74175f8
<__exit_funcs>,
run_list_atexit=run_list_atexit@entry=true) at exit.c:82
atfct = <optimized out>
onfct = <optimized out>
cxafct = <optimized out>
#4 0x00007ffff70aee55 in __GI_exit (status=<optimized out>) at exit.c:104
No locals.
#5 0x00007ffff7099617 in __libc_start_main (main=0x401cb0 <main>, argc=1,
argv=0x7fffffffe028, init=<optimized out>,
fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe018)
at libc-start.c:325
result = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 2377229656176593814,
4207744, 140737488347168, 0, 0,
-2377229103128507498, -2377210842853799018}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0,
0x404280 <__libc_csu_init>, 0x7fffffffe028}, data = {prev = 0x0,
cleanup = 0x0, canceltype = 4211328}}}
not_first_call = <optimized out>
#6 0x00000000004034a9 in _start ()
No symbol table info available.
Undefined command: "qit". Try "help".
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