On Tue, May 14, 2013 at 08:47:36PM -0400, [email protected] wrote:
> Date: Tue, 14 May 2013 19:05:13 -0400
> From: Vojt?ch Nov?k <[email protected]>
> I am getting this error:
>
> undefined reference to `ccv_read_impl(...)'
> and more undefined references to the stuff from the library
As has been clarified by Sasha already, most likely this is a language-side
issue.
Since the verbosely displayed command line seems fine, quite likely
we're past CMake configuration questions.
For C vs. C++ linking (symbol {decoration|mangling}) questions,
you'd want to use
nm -n [-C]
and perhaps various checks via objdump.
> libccv.a comes with a header file ccv.h and it depends on libjpeg and
> libpng.
>
> I wrote my own FindCCV.cmake to find the library and put it into
> ${CMAKE_SOURCE_DIR}/cmake/Modules/, together with finders for jpeg and png.
> As far as I know, all three are found successfully (the REQUIRED keyword
> doesn't stop compilation and there are correct address entries in
> CMakeCache). The libraries are in correct order ccv, jpeg, png (ccv depends
> on them).
Side note: since this seems to be an externally built/non-CMake library,
resorting to Find* (Module mode) rather than Config mode seems obvious.
Andreas Mohr
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