Hello EJ Kreinar,
I just came across this situation. I was trying to create a rfnoc gain
tutorial oot module using rfnomodtools. But, when I was doing cmake I got
some errors with respect to find_package(ettus).
I was just fiddling around with cmakefiles as I am not familiar with cmake
and stuff.
But, I found a problem with the gr-ettus module itself. In the gr-ettus
module ettutsConfig.cmake file, there is a line
*include("${CMAKE_CURRENT_LIST_DIR}/ettusTarget.cmake"). *
This is the file that rfnoc OOT searches in order to find the
package ettus. But, while make && make install gr-ettus module
installs *gnuradio-ettusTargets.cmake
*file at the location. Hence, rfnoc OOT module throws an error message
during cmake.
When I corrected the line in gr-ettus and reinstalled it, my OOT module was
able to compile successfully.
But, I am now facing errors during the make process.
I believe the rfnocmodtools template code present inside gr-ettus has not
been migrated for 3.8 even though gr-ettus is migrated.
In the meantime I will also try to fix the error which is thrown during
make process. And update you in this thread if I have any success
If you are able to get past the make process also and install it in gr 3.8.
It would be really great...!!!
Regards,
Mohamed Yaaseen
On Tue, 30 Jun 2020 at 16:01, EJ Kreinar via USRP-users <
usrp-users@lists.ettus.com> wrote:
> Hi gnuradio and usrp-users,
>
> I'm trying to update rfnoc OOT modules for gnuradio 3.8 (gasp).
>
> But I'm having trouble finding and linking to gr-ettus specifically, and I
> wonder how we're supposed to call find_package(<OOT>) and then link to OOT
> modules in general with the updated cmake workflow... Trying to find and
> link gr-ettus, I've tried a few things...
>
> 1) find_package(ettus)
>
> I believe this worked against gnuradio-3.7. Now, I get the following error
> during cmake configure...
>
> ```
> -- No package 'ettus' found
> CMake Error at /usr/local/lib/cmake/ettus/ettusConfig.cmake:41 (include):
> include could not find load file:
> /usr/local/lib/cmake/ettus/ettusTarget.cmake
> ```
>
> 2) find_package(gnuradio-ettus)
>
> This seems more promising, since GR_LIBRARY_FOO seems to
> install gnuradio-ettus cmake files into the lib/cmake/ettus install
> location. This fails in cmake configure with the following error:
>
> ```
> CMake Error at gr-theseus/CMakeLists.txt:84 (find_package):
> By not providing "Findgnuradio-ettus.cmake" in CMAKE_MODULE_PATH this
> project has asked CMake to find a package configuration file provided by
> "gnuradio-ettus", but CMake did not find one.
>
> Could not find a package configuration file provided by "gnuradio-ettus"
> with any of the following names:
>
> gnuradio-ettusConfig.cmake
> gnuradio-ettus-config.cmake
>
> Add the installation prefix of "gnuradio-ettus" to CMAKE_PREFIX_PATH or
> set
> "gnuradio-ettus_DIR" to a directory containing one of the above files.
> If
> "gnuradio-ettus" provides a separate development package or SDK, be sure
> it
> has been installed.
> ```
>
>
> Interestingly, if I change the GR_CMAKE_DIR *inside gr-ettus* to point to
> ${CMAKE_MODULES_DIR)/gnuradio-ettus (
> https://github.com/EttusResearch/gr-ettus/blob/b69260655e974786ea6e611bd91ab578b13ec72a/CMakeLists.txt#L69),
> then the gnuradio-ettus cmake modules get installed to
> lib/cmake/gnuradio-ettus. Then, in my OOT module, calling
> find_package(gnuradio-ettus) finds gr-ettus, and
> target_link_libraries(<my-library> gnuradio-ettus) links successfully.
>
> So: Is this right? Am I missing something obvious here? Should gnuradio
> OOT modules set their GR_CMAKE_DIR to gnuradio-<module>?
>
> Thanks for the help!
> EJ
>
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