[vtkusers] STLreadtest.o(.text+0x7): undefined reference to `vtkSTLReader::New(void)'

[Paul McGuinness]

Hi VTK Developers

I am in a bit of a pickel, I am on Linux using the cmake, then make to
compile my simple program containing the following code:

#include "vtkSTLReader.h"

int main( int argc, char *argv[] )
{
     vtkSTLReader *sr = vtkSTLReader::New();
      sr->SetFileName("y40501.stl");

      sr->Delete();
  return 0;
}

And on compilation I get the following error, does anyone know what is
wrong? I am using VTK-4.2.2


$ make
Building dependencies cmake.check_depends...
-- Compiling VTK loaded commands
-- Compiling VTK loaded commands - done
Building object file STLreadtest.o...
Building executable STLreadtest...
STLreadtest.o: In function `main':
STLreadtest.o(.text+0x7): undefined reference to `vtkSTLReader::New(void)'
collect2: ld returned 1 exit status
make[1]: *** [STLreadtest] Error 1
make: *** [default_target] Error 2

Does anyone know how I can fix this?

Many thanks,
Paul.