Re: [Discuss-gnuradio] installing gnuradio using pybombs

:) Yeah, I mean, virtualenvs kind of do the same as pybombs does, so if
you're used to these, by all means: that's the way to go ;)

On Wed, 2018-08-15 at 13:11 +0200, Roland Schwarz wrote:
> Hi Marcus!
>
> first things first: Thank you for your helpful post!
>
> Am 2018-08-14 um 21:31 schrieb Müller, Marcus (CEL):
> > ... are best submitted to
> > https://github.com/gnuradio/gr-recipes/issues
> > to Pybombs itself:
> > https://github.com/gnuradio/pybombs/issues/
>
> Ok, did it. Will see what happens.
>
> ...
>
> > sudo apt install gnuradio-dev
> >
> > should do that. You can also install all the tools necessary to build
> > GNU Radio (but my wild guess is this does nothing new, so try it):
> >
> > sudo apt build-dep gnuradio
> >
>
> For me build-dep gave a quite long list - interesting. Also, although I
> have successfully running gnuradio and gnuradio-dev it wanted to pull in
> something (jack related) that did not install smoothly (I fixed it with
> the help of aptitude).
>
> The following steps worked almost without issues. I had no problem with
> finding the gr-filter (at least there were no complaints during config),
> but I had a small problem during compile, due to some int to char
> conversion errors. (You should not initialize a char with 0xff, better
> use '\xff'.)
>
> Since in a later step you are suggesting a script to source some
> env-vars I'd rather suggest to use virtualenv and virtualenvwrapper,
> since I find myself often coding in python.
>
> So I did the following
> > mkdir build
> > cd build
>
> mkvirtualenv gr-op25
> cmake -DCMAKE_INSTALL_PREFIX=$VIRTUAL_ENV
>
> > make -j4 #-j4 is for four parallel compilations
> > make install # doesn't need sudo if the prefix is writable by you
> >
>
> then I add the following to
> $VIRTUAL_ENV/bin/postactivate
>
> #!/bin/bash
> # This hook is sourced after this virtualenv is activated.
>
> export OLD_LD_LIBRARY_PATH=$LD_LIBRARY_PATH
> export LD_LIBRARY_PATH=$VIRTUAL_ENV/lib:$LD_LIBRARY_PATH
> export OLD_GRC_BLOCKS_PATH=$GRC_BLOCKS_PATH
> export GRC_BLOCKS_PATH=$VIRTUAL_ENV/share/gnuradio/grc/blocks
>
> and the following to
> $VIRTUAL_ENV/bin/predeactivate
>
> #!/bin/bash
> # This hook is sourced before this virtualenv is deactivated.
>
> export LD_LIBRARY_PATH=$OLD_LD_LIBRARY_PATH
> unset OLD_LD_LIBRARY_PATH
> export GRC_BLOCKS_PATH=$OLD_GRC_BLOCKS_PATH
> unset OLD_GRC_BLOCKS_PATH
>
> Now one can just type
>
> workon gr.op25
> gnuradio-companion
>
> And later when needing another env, either
> workon somethinother
>
> or just
>
> deactivate
>
> > Tadaaa!
>
> So thank you again for having got me started!
>
> P.S. The *activate scripts can also be set on a global (user-global)
> level. This should come handy when one needs to purge and recreate
> environments more often.
>
> Best regards,
> Roland
>