Thanks, Ryan. The system has GCC 9.3.0 installed (Ubuntu 20.04) which the docs say supports c++17.
pybind11 package manager version for Ubuntu 20.04 used to be 2.5.0. The package manager has now reverted the standard version to 2.4.3 (which used to not work). I installed pybind 2.5.0 using the tarball (link on the wiki for 3.9 OOT porting). That pybind11 build might not support c++17, perhaps c++14 (based on strings in the pybind build directory)? Is some different version of pybind11 needed now for gnuradio 3.10 ? -- Tom, N5EG On Fri, Apr 29, 2022 at 9:40 AM Ryan Volz <ryan.v...@gmail.com> wrote: > Hi Tom, > > GR 3.10 increased the CXX standard to c++17. Perhaps your compiler > doesn't recognize -std=c++17, but did allow -std=c++14 with GR 3.9? > > My suspicion is that the following line has something to do with it: > > > https://github.com/gnuradio/gnuradio/blob/main/gr-utils/blocktool/core/parseheader_generic.py#L323 > > Cheers, > Ryan > > On 4/29/22 11:35 AM, Tom McDermott wrote: > > I am trying to port an existing 3.9 OOT to 3.10. After the conversion > > and edits based on the 3.10 directories, > > the command to gr_modtool bind my_module fails with the error: > > > > Unknown -std=c++xx flag used > > > > I've greped the entire 3.10 project from its root and that string > > is not in any of the project modules except in the > > failed_conversions.txt file in the python bind output directory). > > > > The only place I can see an include pointing outside the OOT directory > > is in the api.h file in the project include directory: > > #include <gnuradio/attributres.h> > > > > That attributes.h file cannot be found anywhere on my system. > > > > -- Tom, N5EG > > > > > > > > >
