Re: Coexistence of Gnuradio 3.7 and 3.8 on one PC

[Barry Duggan]

Harald,

Did you use the Python3 instructions? Did you do the
"Note: If you are building UHD-3.14 or previous, run the following 
commands:

sudo apt install python
sudo apt install python-pip
sudo pip install mako requests numpy
"?

Also, if you are starting over, you need to delete the folder "~/gr38" 
(or whatever you used) and start fresh. It gets confused if you try to 
re-use the same folder. Also, I suspect that to have both versions in 
your computer, *both* will need to be built with PyBOMBS rather than 
having one in the system files.

Keep us posted. 73,
---
Barry Duggan KV4FV


On 2019-12-24 22:08, Harald Fritzsche (DD0VS) wrote:
> Hello Barry, all,
>
> many thanks for the answer.
>
> I followed your recommendation with the source build link (swap file
> and some extra install).
> Second i stepped in the pybombs build.
> I decided to start with build of ~/gr38.
>
> It stops here: (i assumed that it would be better to keep the runing
> binary)
> --snip---
> Install uhd from source despite binary install available Y/[N]? n
> [ERROR] Error installing package uhd. Aborting.
> --end--
>
> Second run was with Y, unfortunately with this result:
> --snip--
> [  2%] Built target uhd_rpclib
> [  3%] Building CXX object
> lib/CMakeFiles/uhd.dir/convert/convert_with_neon.cpp.o In file included
> from /home/pi/gr38/src/uhd/host/lib/convert/convert_with_neon.cpp:10:
> /usr/lib/gcc/arm-linux-gnueabihf/8/include/arm_neon.h:
> In member function 'virtual void
> __convert_fc32_1_sc16_item32_le_1_PRIORITY_SIMD::operator()(const
> input_type&, const output_type&,
> size_t)': /usr/lib/gcc/arm-linux-gnueabihf/8/include/arm_neon.h:6740:1:
> error: inlining failed in call to always_inline 'float32x4_t
> vdupq_n_f32(float32_t)': target specific option mismatch vdupq_n_f32
> (float32_t __a)
> ... much more
> --end--
> BTW: ~/gr38 is almost empty, only src/uhd (i fear many of the build is
> installed in a place where it interferes with the existing
> installation?)
>
> I am lacking knowledge to proceed, sorry.
>
> Regards and vy73
> Harald
> DD0VS
>
>
>
>
> Am Tue, 24 Dec 2019 12:37:11 -0500
> schrieb Barry Duggan <address@hidden>:
>
> > Hi Harald,
> >
> > One possibility is to use PyBOMBS to build two separate folders which
> > are independent of the system files so there is no confusion.
> >
> > See https://github.com/gnuradio/pybombs#pybombs You could build 3.7
> > in a folder named ~/GR37 and 3.8 in a folder ~/GR38 and each folder
> > would have all of the libraries contained within those folders. It
> > would take a while to build, but should work OK once you are done.
> >
> > To speed up compile time you might set up a swap file. See
> > https://wiki.gnuradio.org/index.php/InstallingGRFromSource_on_Raspberry_Pi
> > for reference.
> >
> > I worked on the documentation of both, so please let me know if you
> > run into any problems.
> >
> > Happy holidays and 73,