Hi again, Ben and everybody,

Answered my own question.
Although I don't have a joystick there is a joystick device listed:
/dev/input/js0

I renamed it to /dev/input/js0.x. That fixed the problem.
Enviro seems to be running fine now on Slackware 12.2.

(Didn't have this problem in the past on Slackware 12.0 & 12.1 with
older versions of vtp).

Cheers,
Peter
--- In vtp-unix@yahoogroups.com, "geep999" <geep999@...> wrote:
>
> Hi Ben and everybody,
>
> I have just built vtp-src-081224 on Slackware 12.2 Linux.
> When I start Enviro I have a similar problem to that of Levi
> Swartzentruber on Nov 20 2008:
> "the view is always rotating to the left in a circular motion".
> (See his message
http://tech.groups.yahoo.com/group/vtp-unix/message/782
> <http://tech.groups.yahoo.com/group/vtp-unix/message/782> ).
>
> Then as soon as I click the Enviro window with the mouse I get a
> segfault, attached below.
> But I don't have a joystick. How to tell Enviro not to look for it?
>
> (This problem was noted in the changelog back in 2006 on 06.09.22
> "Enviro: fixed spinning camera when joystick not found"
> http://www.vterrain.org/Implementation/ChangeLog/2006.htm
> <http://www.vterrain.org/Implementation/ChangeLog/2006.html> )
>
> I have tried recompiling wxGTK-2.8.4 without a joystick:
> ../configure --enable-unicode --with-opengl
> --prefix=/home/dad/wxGTK2.8.4 --disable-joystick
> but then Enviro won't compile:
>
/space/vtp-20090425/VTP/TerrainApps/Enviro/wx/bitmap/view_profile.xpm:42\
\
> : warning: deprecated conversion from string constant to 'char*'
> wx/EnviroGUI.cpp: In constructor
'vtJoystickEngine::vtJoystickEngine()':
> wx/EnviroGUI.cpp:362: error: invalid use of incomplete type 'struct
> wxJoystick'
> wx/EnviroGUI.h:20: error: forward declaration of 'struct wxJoystick'
> wx/EnviroGUI.cpp:363: error: invalid use of incomplete type 'struct
> wxJoystick'
> wx/EnviroGUI.h:20: error: forward declaration of 'struct wxJoystick'
> wx/EnviroGUI.cpp:365: warning: possible problem detected in invocation
> of delete operator:
> wx/EnviroGUI.cpp:365: warning: invalid use of incomplete type 'struct
> wxJoystick'
> wx/EnviroGUI.h:20: warning: forward declaration of 'struct wxJoystick'
> wx/EnviroGUI.cpp:365: note: neither the destructor nor the
> class-specific operator delete will be called, even if they are
declared
> when the class is defined.
> wx/EnviroGUI.cpp: In member function 'virtual void
> vtJoystickEngine::Eval()':
> wx/EnviroGUI.cpp:379: error: invalid use of incomplete type 'struct
> wxJoystick'
> wx/EnviroGUI.h:20: error: forward declaration of 'struct wxJoystick'
> wx/EnviroGUI.cpp:380: error: invalid use of incomplete type 'struct
> wxJoystick'
> wx/EnviroGUI.h:20: error: forward declaration of 'struct wxJoystick'
> make: *** [wx/EnviroGUI.o] Error 1
> make: *** Waiting for unfinished jobs....
>
> Any thoughts welcome.
>
> Cheers,
> Peter
>
>
> SetupTerrain step 10
> SetMessage: 'Welcome to Severn'
> seconds since app start: 0.85
> Changing app state from AS_SwitchToTerrain to AS_Terrain
> Realize toolbar.
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xb1f0ab90 (LWP 15590)]
> 0xb7a42cfc in wxEvtHandler::AddPendingEvent () from
> /home/dad/wxGTK2.8.4/lib/libwx_baseu-2.8.so.0
> (gdb) bt
> #0 0xb7a42cfc in wxEvtHandler::AddPendingEvent () from
> /home/dad/wxGTK2.8.4/lib/libwx_baseu-2.8.so.0
> #1 0xb7e9fad5 in wxJoystickThread::Entry () from
> /home/dad/wxGTK2.8.4/lib/libwx_gtk2u_adv-2.8.so.0
> #2 0xb7a41388 in wxThreadInternal::PthreadStart () from
> /home/dad/wxGTK2.8.4/lib/libwx_baseu-2.8.so.0
> #3 0xb7a413e9 in wxPthreadStart () from
> /home/dad/wxGTK2.8.4/lib/libwx_baseu-2.8.so.0
> #4 0xb6650369 in start_thread () from /lib/libpthread.so.0
> #5 0xb65d3cfe in clone () from /lib/libc.so.6
> (gdb)
>