Marcus,
Thank you for the quick reply. I cannot get to the computer with the
full Yocto command until maybe Monday, I will send a response with that
command when I can get to the computer.
I believe the issue is with CMake and not Python. CMake makes the file
'build/gnuradio-runtime/swig/CMakeFiles/Export/lib/cmake/gnuradio/runtime_swigTargets-release.cmake',
as part of the GNURadio build. What is missing on the cross-compile is the
string ${_IMPORT_PREFIX} on 2 lines in the file giving the path to
_runtime_swig.so, I had missed one in my earlier email . Adding that
string to the file in the OOT sysroot allows the OOT targets to build,
which can be a workaround until the issue can be better understood and
corrected. This is the only .cmake file built with the command CMAKE
install(EXPORT.... in the CMakeLists.txt file, so the build for the .cmake
file is different than the rest of the files in GNU Radio.
As far as the OOT modules, I have tried gr-paint38 and my gr3.8 branch of
gr-iio, https://github.com/flynn378/gr-iio. Both have the same error.
I am aware of the issue with GRC / python and I am currently fixing that
manually until I get the time to investigate a correct solution.
Thanks
Toby
On Fri, May 17, 2019 at 4:46 PM Müller, Marcus (CEL) <muel...@kit.edu>
wrote:
> Hi Toby,
>
> what's the verbatim cmake command line Yocto is executing?
>
> Since it's impossible for the build system to know by itself what the
> target python will be, unless you tell it which, we'll have to figure
> out a way to consistently set Python used during CMake, Python used
> during build, and Python used on target.
> It's a complicated thing, actually – the python that the build system
> internally (a lot!) doesn't have to be the one the used to link SWIG
> files against.
> So, I see no way but to set the PYTHON_LIBRARIES and
> PYTHON_INCLUDE_DIRS explitly in the cmake command line. (If anyone
> could point me towards an easier solution that doesn't trade project
> sanity for having one argument fewer in a OE layer, I'd be very happy.)
>
> Now, I don't know if all this is related to your problem. But then
> again, I don't know anything about the OOT module you're trying to
> build. So far, we don't have overly many 3.8-compatible OOTs, so if you
> can point us to the one you're working with, that would be highly
> appreciated. One of the main reasons of breakage is that the old CMake
> constructs we used to employ in GNU Radio have been replaced by more
> modern CMake patterns, which especially means that the notion of
> component dependencies and hence install targets has changed.
>
> Best regards,
> Marcus
>
> On Fri, 2019-05-17 at 13:21 -0400, Toby Flynn wrote:
> > I am attempting to install OOT modules using a Yocto/Openembedded
> > enviroment and the latest GNURadio 3.8. This process was working
> > before the latest cmake changes to 3.8 were incorporated. I am now
> > having issues with the cross-complitaion. I have tracked the issue
> > down to a file I believe is created by cmake:
> > build/gnuradio-
> > runtime/swig/CMakeFiles/Export/lib/cmake/gnuradio/runtime_swigTargets
> > -release.cmake
> >
> > When building directly on a computer this file has difference, line
> > 10 than the one build using Yocto.
> > Direct build on a computer the line is:
> > IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/python3.6/dist-
> > packages/gnuradio/gr/_runtime_swig.so"
> >
> > On the Yocto build the line is:
> >
> > IMPORTED_LOCATION_RELEASE "/usr/lib/python3.5/site-
> > packages/gnuradio/gr/_runtime_swig.so"
> >
> > The missing ${_IMPORT_PREFIX} leads to cmake issues since
> > _runtime_swig.so cannot be found.
> >
> > Does anyone have a suggestion for something I can try to fix the
> > issue.
> >
> > Thanks
> > Toby
> >
> >
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > Discuss-gnuradio@gnu.org
> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
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