[vtkusers] Problem with VTK on Linux

[Ian Remmler]

Hi,

I am having an odd problem with a VTK application we are trying to port to
Linux.  The application runs fine on Irix, but it doesn't like Linux.

Disclaimer:  I have no experience with VTK or our application, and the
person who wrote the application is long gone, so please forgive any
ignorance on my part.  I just want to get the thing to work.

As I said the app. works under Irix, using SGI's compiler.  It compiles
fine on Linux, but when I try to run it, it won't load our helper c++
library.  It says...

Error in startup script: couldn't load file "./VizmoLib.so":
./VizmoLib.so: undefined symbol: GetElt__Ct4List1Z14vizRobotObjectUl
    while executing
"load ./VizmoLib.so VizmoLib"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 $auto_index($name)"
    (procedure "auto_load" line 13)
    invoked from within
"auto_load $name [uplevel 1 {namespace current}]"
    (autoloading "VizmoLib")
    invoked from within
"VizmoLib"
    (file "./vizmo" line 8)

The symbol GetElt__Ct4List1Z14vizRobotObjectUl translates to... 
List<vizRobotObject>::GetElt(unsigned long) const
...if that helps.  I thought perhaps a problem with templates?

Actually, it used to be an overloaded [] operator.  I thought that might
be what it didn't like, so I changed it to a normal method GetElt(), but
it still barfs.

The script "vizmo" that we use to launch the app follows...

#!/usr/local/bin/vtk
set dir .
lappend auto_path $dir "/home/user/xxx/Vizmo"
package require VizmoLib
puts stdout "Please wait: Vizmo 3D initializing..."
VizmoLib
source /home/user/xxx/dsmft/Vizmo/VizmoView.tcl
set userProfile "~/vizmo.init"

if [catch { source $userProfile} initResult ] {
        puts stdout "No User Profile specified..."
}
puts stdout "User Profile loaded..."

Here's what our Linux setup looks like:

System:		Pentium III
OS:		Redhat 6.1 with some upgrades
gcc:		2.95.1
binutils:	2.9.5.0.22
glibc:		2.1.2
vtk:		CVS as of about a week ago
tcl/tk:		8.0 and 8.3

If any other info would be helpful, I'm sure I can dig it up.

Thanks,
	- Ian.