[vtkusers] Linker error unresolved external in C++ Builder 6.0

[David Cole]

If you are using CMake to build your project, just add:

TARGET_LINK_LIBRARIES(myExeOrLib vtkRendering)

after your ADD_EXECUTABLE or ADD_LIBRARY statement.

See "cmake --help-command TARGET_LINK_LIBRARIES" for more info.


On 11/13/07, Walter Cabrera <walter at eresmas.net> wrote:
>
>
> Dear David:
>
> I am using CMake with the following configuration:
>
> Source code: C:\VTK
> build the binaries: C:\VTK\build
>
> BUILD_EXAMPLES: OFF
> BUILD_SHARED_LIBS:OFF
> CMAKE_BACKWARDS_COMPATIBILITY: 2.4
> CMAKE_BUILD_TYPE: Debug
> CMAKE_INSTALL_PREFIX: C:/VTK
> VTK_DATA_ROOT: C:/VTK/VTKData
> VTK_USE_PARALLEL: ON
> VTK_USE_RENDERING: ON
> VTK_WRAP_JAVA: OFF
> VTK_WRAP_PYTHON: OFF
> VTK_WRAP_TCL: OFF
>
> Then I used Borland make(makefile)
>
> I think as you that some library is missing from the link.
>
> In borland the path to library are placed using Project | Options |
> Directories/Conditionals | Library path
>
> Hear is the path C:\VTK\build\bin that contains the VTK libraries builded
> by
> CMake
>
> But the error continues ....
>
> Thank you for everything, very nice
>
> Walter
>
>
> David Cole wrote:
> >
> > Are you using CMake to generate your Borland makefile?
> > Are you using a build of VTK also built with CMake / Borland makefiles?
> >
> > That is the normal/expected VTK use.
> >
> > If you have built VTK and want to use it *without* using CMake to drive
> > the
> > build of your project, then you have to add stuff to the Borland project
> > to
> > enable including VTK header files and linking to VTK libraries.
> >
> > As I am not a Borland GUI user, I do not know how to tell you to add a
> VTK
> > library through Borland's GUI. Unresolved external errors mean that some
> > library is missing from the link line -- if you are using a CMake based
> > project, this should just work; if you are using Borland's IDE/GUI then
> > you
> > are on your own... :-)
> >
> > Any other Borland IDE users out there that can help Walter?
> >
> > HTH,
> > David
> >
> >
> > On 11/13/07, Walter Cabrera <walter at eresmas.net> wrote:
> >>
> >>
> >> Dear Kent and David:
> >>
> >>
> >> This is the source:
> >>
> >> #include <vcl.h>
> >> #pragma hdrstop
> >>
> >> #include "Unit1.h"
> >> #include <vtkBMPReader.h>
> >>
> >>
> //---------------------------------------------------------------------------
> >> #pragma package(smart_init)
> >> #pragma resource "*.dfm"
> >> TForm1 *Form1;
> >>
> >>
> //---------------------------------------------------------------------------
> >> __fastcall TForm1::TForm1(TComponent* Owner)
> >>   : TForm(Owner)
> >> {
> >>   vtkBMPReader *bmpReader=vtkBMPReader::New();
> >> }
> >>
> >> and this is the error
> >>
> >> [Linker Error] Unresolved external 'vtkBMPReader::New()' referenced
> from
> >> C:\VTK\UNIT1.OBJ
> >>
> >> I think that the error is in link step.
> >>
> >> Thanks
> >>
> >>
> >>
> >> Kent Eschenberg wrote:
> >> >
> >> > Nevertheless David is correct: there is no such class as
> VTKBMPReader.
> >> Why
> >> > not
> >> > correct this error and see what happens?
> >> >
> >> > Kent
> >> >
> >> > Walter Cabrera wrote:
> >> >> Hi dear David:
> >> >>
> >> >> This it is not the mistake because the compilation step executes
> >> >> successfully, vtkBMPReader is written correctly in the source, the
> >> error
> >> >> is
> >> >> in the step of link.
> >> >>
> >> >> Thanks
> >> >>
> >> >>
> >> >> David Cole wrote:
> >> >>> There is no VTKBMPReader with upper case VTK... If that's printed,
> >> it's
> >> >>> a
> >> >>> typo.
> >> >>>
> >> >>> Try "vtkBMPReader"
> >> >>>
> >> >>> HTH,
> >> >>> David
> >> >>>
> >> >>> On 11/6/07, Walter Cabrera <walter at eresmas.net> wrote:
> >> >>>>
> >> >>>> Hi.
> >> >>>> My environment is the compiler C++ Builder 6.0.  I am trying to
> >> execute
> >> >>>> the
> >> >>>> example of the VTK User's Guide (page 54). Using the VTKBMPReader
> >> class
> >> >>>> in
> >> >>>> the instruction
> >> >>>>
> >> >>>> VTKBMPReader* bmpreader=VTKBMPReader::New(); I get the error
> >> >>>>
> >> >>>>             Linker error unresolved external "VTKBMPReader::New()"
> >> >>>> referenced from unit3.obj
> >> >>>>
> >> >>>>             I suppose that this error is related with the cmake
> >> >>>> configuration I use. Can someone help me and give a hint?
> >> >>>>
> >> >>>>             Thanks
> >> >>>>
> >> >>>> --
> >> >>>> View this message in context:
> >> >>>>
> >>
> http://www.nabble.com/Linker-error-unresolved-external-in-C%2B%2B-Builder-6.0-tf4757672.html#a13605341
> >> >>>> Sent from the VTK - Users mailing list archive at Nabble.com.
> >> > _______________________________________________
> >> > This is the private VTK discussion list.
> >> > Please keep messages on-topic. Check the FAQ at:
> >> > http://www.vtk.org/Wiki/VTK_FAQ
> >> > Follow this link to subscribe/unsubscribe:
> >> > http://www.vtk.org/mailman/listinfo/vtkusers
> >> >
> >> >
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Linker-error-unresolved-external-in-C%2B%2B-Builder-6.0-tf4757672.html#a13721502
> >> Sent from the VTK - Users mailing list archive at Nabble.com.
> >>
> >> _______________________________________________
> >> This is the private VTK discussion list.
> >> Please keep messages on-topic. Check the FAQ at:
> >> http://www.vtk.org/Wiki/VTK_FAQ
> >> Follow this link to subscribe/unsubscribe:
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> >>
> >
> > _______________________________________________
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> > Please keep messages on-topic. Check the FAQ at:
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> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Linker-error-unresolved-external-in-C%2B%2B-Builder-6.0-tf4757672.html#a13725951
> Sent from the VTK - Users mailing list archive at Nabble.com.
>
> _______________________________________________
> This is the private VTK discussion list.
> Please keep messages on-topic. Check the FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
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