[GRASS-dev] trying to compile wxPython NVIZ

[Glynn Clements]

Michael Barton wrote:

> Forgot to give the nviz error. Here it is:
> 
> Process:         nviz [64828]
> Path:            /Applications/Grass/GRASS-7.0.app/Contents/MacOS/etc/ 
> nviz2.2/nviz
> Identifier:      nviz
> Version:         ??? (???)
> Code Type:       X86 (Native)
> Parent Process:  wish8.5 [64804]
> 
> Date/Time:       2008-07-15 22:36:04.896 -0700
> OS Version:      Mac OS X 10.5.4 (9E17)
> Report Version:  6
> 
> Exception Type:  EXC_BAD_ACCESS (SIGBUS)
> Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000029
> Crashed Thread:  0
> 
> Thread 0 Crashed:
> 0   nviz                          	0x00012abf Togl_CreateWindow + 1371

Is it possible to run it under GDB and find exactly where it crashed?

Note that "nviz" itself can't be debugged, as it's a shell script.
However, the script is essentially just:

	exec $GISBASE/etc/nviz2.2/nviz -f $GISBASE/etc/nviz2.2/scripts/nviz2.2_script ${1+"$@"}

So you can debug it with e.g.:

	gdb $GISBASE/etc/nviz2.2/nviz
	run -f /path/to/etc/nviz2.2/scripts/nviz2.2_script

I wonder if this might be an issue with Tcl/Tk 8.5; Togl depends quite
heavily upon Tcl/Tk internals, so it's likely to be quite
version-sensitive.

-- 
Glynn Clements <glynn at gclements.plus.com>