Package: libgtkglext1
Version: 1.2.0-1.1
Severity: normal
I am trying to get an application working but it segfaults
every time at the call to gdk_gl_get_proc_address.
Shown below is a simplified program and an example session.
--> get_proce_address.c <-------------------------------------------------------
// libgtkglext1-dev
#include <gdk/gdkglquery.h>
int main() {
GdkGLProc proc = NULL;
proc = gdk_gl_get_proc_address("glPolygonOffset");
}
--------------------------------------------------------------------------------
--> example session <-----------------------------------------------------------
j...@bishop get_proc_address$ make
gcc -g -I/usr/include/gtkglext-1.0 -I/usr/lib/gtkglext-1.0/include
-I/usr/include/gl
ib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/gtk-2.0
-I/usr/lib/gtk-2.0/include
-I/usr/include/pango-1.0 -I/usr/include/cairo -Wl,--export-dynamic -pthread
-lgtkgl
ext-x11-1.0 -lgtk-x11-2.0 -latk-1.0 -lpangoft2-1.0 -lfreetype -lfontconfig
-lgdkglex
t-x11-1.0 -lGLU -lGL -lXmu -lXt -lSM -lICE -lgdk-x11-2.0 -lpangox-1.0 -lX11
-lgdk_pi
xbuf-2.0 -lm -lpangocairo-1.0 -lcairo -lgio-2.0 -lpango-1.0 -lgobject-2.0
-lgmodule-
2.0 -lgthread-2.0 -lrt -lglib-2.0 get_proc_address.c
j...@bishop get_proc_address$ gdb a.out
GNU gdb (GDB) 7.1-debian
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from
/home/jeri/MegaTunix-work/MegaTunix-BUGS/20100721-3d_segfault/g
et_proc_address/a.out...done.
(gdb) run
Starting program:
/home/jeri/MegaTunix-work/MegaTunix-BUGS/20100721-3d_segfault/get_
proc_address/a.out
[Thread debugging using libthread_db enabled]
Program received signal SIGSEGV, Segmentation fault.
0xb5a082d0 in ?? ()
(gdb) bt
#0 0xb5a082d0 in ?? ()
#1 0xb7aee952 in gdk_gl_get_proc_address (proc_name=0x8048890
"glPolygonOffset")
at gdkglquery-x11.c:408
#2 0x080487c1 in main () at get_proc_address.c:8
(gdb) quit
--------------------------------------------------------------------------------
-- System Information:
Debian Release: squeeze/sid
APT prefers oldstable
APT policy: (500, 'oldstable'), (500, 'unstable'), (500, 'testing'), (500,
'stable')
Architecture: i386 (i686)
Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libgtkglext1 depends on:
ii libatk1.0-0 1.30.0-1 The ATK accessibility toolkit
ii libc6 2.11.2-2 Embedded GNU C Library: Shared lib
ii libcairo2 1.8.10-4 The Cairo 2D vector graphics libra
ii libfontconfig1 2.8.0-2.1 generic font configuration library
ii libfreetype6 2.4.0-2 FreeType 2 font engine, shared lib
ii libgl1-mesa-glx [libgl1] 7.7.1-4 A free implementation of the OpenG
ii libglib2.0-0 2.24.1-1 The GLib library of C routines
ii libglu1-mesa [libglu1] 7.7.1-4 The OpenGL utility library (GLU)
ii libgtk2.0-0 2.20.1-1 The GTK+ graphical user interface
ii libice6 2:1.0.6-1 X11 Inter-Client Exchange library
ii libpango1.0-0 1.28.1-1 Layout and rendering of internatio
ii libsm6 2:1.1.1-1 X11 Session Management library
ii libx11-6 2:1.3.3-3 X11 client-side library
ii libxmu6 2:1.0.5-1 X11 miscellaneous utility library
ii libxt6 1:1.0.7-1 X11 toolkit intrinsics library
libgtkglext1 recommends no packages.
libgtkglext1 suggests no packages.
-- no debconf information
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