Well, seems you must have been very lucky then.
Unless my package shows the dfsg-4 but yet is too "old".
Let's compare: mine is 6,905,144 bytes large, and got me this:
debbox $ x64
getting symbol guess_format failed!
Illegal instruction
getting symbol guess_format failed!
Illegal instruction
debbox $ gdb /usr/bin/x64
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 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 /usr/bin/x64...(no debugging symbols found)...done.
(gdb) r
Starting program: /usr/bin/x64
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
getting symbol guess_format failed!
Program received signal SIGILL, Illegal instruction.
***************************************************
0x080a289e in vsync_set_machine_parameter ()
***************************************************
(gdb) q
A debugging session is active.
A debugging session is active.
Inferior 1 [process 4963] will be killed.
Quit anyway? (y or n) y
debbox $ uname -a
Linux 3.3.7 #38 SMP PREEMPT [...] i686 GNU/Linux
debbox $ uname -a
Linux 3.3.7 #38 SMP PREEMPT [...] i686 GNU/Linux
---
So on my machine, the culprit is vsync_set_machine_parameter().
Looks to me the person who built this built it too specifically for some group of (newer??) hardware, making it fail on other.
This is still an old Athlon XP machine, though with a good performance thanks to Linux' clutter-reduced architecture...
