crash without bt on Dirk/Qt

[Tomaz Canabrava]

People, I need help compiling and running the current Qt code on my work
desktop. While I do belive that on Dirk`s machine it works ( because it
works on my home Desktop machine too ), I`m unable to make it run on my
Work machine ( and I`m at work, without a thing to do now, so hacking
subsurface would be a nice thing. )

![tomaz at tatooine subsurface]$ ./subsurface

(process:10326): Gtk-WARNING **: Locale not supported by C library.
        Using the fallback 'C' locale.
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 14: reading
configurations from ~/.fonts.conf is deprecated.
address of dive_table 0x6bfc90
Segmentation fault (core dumped)
![tomaz at tatooine subsurface]$

Unfortunately, I didn`t managed to find the core-dump, so I runned it with
gtb, but to my surprise, it freezed, instead of crashing. And the control
didn`t returned to GDB, so I killed it with ctrl+c, and got this bt:

address of dive_table 0x6bfc90
bt
^C
Program received signal SIGINT, Interrupt.
0x00007ffff305016c in __lll_robust_lock_wait () from
/usr/lib/libpthread.so.0
(gdb) bt
#0  0x00007ffff305016c in __lll_robust_lock_wait () from
/usr/lib/libpthread.so.0
#1  0x00007ffff3047d18 in _L_robust_lock_126 () from
/usr/lib/libpthread.so.0
#2  0x00007ffff30478f2 in __pthread_mutex_lock_full () from
/usr/lib/libpthread.so.0
#3  0x00007ffff21cb557 in XrmQGetResource () from /usr/lib/libX11.so.6
#4  0x00007ffff21a7ca2 in XGetDefault () from /usr/lib/libX11.so.6
#5  0x00007ffff4d510af in ?? () from /usr/lib/libcairo.so.2
#6  0x00007ffff4d53490 in ?? () from /usr/lib/libcairo.so.2
#7  0x00007ffff4d259ab in cairo_surface_get_font_options () from
/usr/lib/libcairo.so.2
#8  0x00007ffff4ce563f in ?? () from /usr/lib/libcairo.so.2
#9  0x00007ffff4ce9428 in ?? () from /usr/lib/libcairo.so.2
#10 0x00007ffff4cdb4d3 in cairo_show_glyphs () from /usr/lib/libcairo.so.2
#11 0x00007ffff51ffe33 in ?? () from /usr/lib/libpangocairo-1.0.so.0
#12 0x00007ffff5200144 in ?? () from /usr/lib/libpangocairo-1.0.so.0
#13 0x00007ffff430252f in pango_renderer_draw_glyphs () from
/usr/lib/libpango-1.0.so.0
#14 0x00007ffff52003a4 in pango_cairo_show_glyph_string () from
/usr/lib/libpangocairo-1.0.so.0
#15 0x00007ffff430252f in pango_renderer_draw_glyphs () from
/usr/lib/libpango-1.0.so.0
#16 0x00007ffff4302eb8 in pango_renderer_draw_layout_line () from
/usr/lib/libpango-1.0.so.0
#17 0x00007ffff4303215 in pango_renderer_draw_layout () from
/usr/lib/libpango-1.0.so.0
#18 0x00007ffff5432323 in gdk_draw_layout_with_colors () from
/usr/lib/libgdk-x11-2.0.so.0
#19 0x00007ffff54325f7 in gdk_draw_layout () from
/usr/lib/libgdk-x11-2.0.so.0
#20 0x00007ffff5864d31 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#21 0x00007ffff57e09c5 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x00007ffff57ec229 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#23 0x00007ffff409c3d2 in g_closure_invoke () from
/usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---

It seems that the new delayed initialization of Qt can be killing the GTK
version of Subsurface on some systems.

Tomaz
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