[vtkusers] VTK 5.0 , ITK 2.4.1 compile errors with cygwin gcc 3.4.4

[Obada Mahdi]

Hi Stefanie!

Stefanie Nowak wrote:
> I tried different things to compile the ITK and VTK.
> You were right that both were enabled the win32threads and the pthreads 
> for ITK. By only changing this, I could not compile, but by using MinGW 
> instead of cygwin and starting the Cmake from the MinGW shell compiling 
> the ITK works.
> 
> But I have still problems to compile VTK. I started CMake from the MinGW 
> shell, but still get errors. I think that there is still a wrong flag in 
> the CMake.
> I  integrated VTK as a project in eclipse and ran make from there.
> Have you (or anybody else) an idea on what to pay attention to?

This seems to be a different problem with building VTK than the one you 
reported before; it occurs later in the build process, apparently while 
trying to link a shared library.  There can be a number of reasons for 
this, including:

- missing or misplaced "-lvtkCommon" flag to the linker
- the vtkCommon.dll.a import library somehow has been created with a 
different compiler/linker

To help diagnose the problem, could you please provide a copy of your 
"CMakeCache.txt" (from the VTK build directory) and, from the build 
output, at least the line containing the link command?  To see the 
latter, CMAKE_VERBOSE_MAKEFILE has to be enabled.  The line should 
contain something like
"[...] c++ -shared -Wl,--out-implib,../bin/libvtkFiltering.dll.a [...]",
along with a long list of object files and some additional linker flags.

Also, when in doubt, you should always make sure to build in a fresh or 
cleaned (make clean) build directory, to prevent stale object files or 
libraries from getting in the way.


Regards

Obada

> The first VTK errors:
> 
> CMakeFiles/vtkFiltering.dir/vtkTriangleStrip.obj(.text+0x538):vtkTriangleStrip.cxx: 
> undefined reference to `_imp___ZN9vtkObjectdlEPv'
> CMakeFiles/vtkFiltering.dir/vtkTrivialProducer.obj(.text+0x172):vtkTrivialProducer.cxx: 
> undefined reference to `_imp___ZN16vtkObjectFactory14CreateInstanceEPKc'
> CMakeFiles/vtkFiltering.dir/vtkTrivialProducer.obj(.text+0x19c):vtkTrivialProducer.cxx: 
> undefined reference to `_imp___ZN9vtkObjectnwEj'
[...]