Compiling GNURadio on the Raspberry Pi (Raspi)

I've been meaning to post this for a few weeks so today I'm going to jot down just the most pertinent information, in hopes that someone may benefit from what I learned.

So a few weeks ago I set out to compile Gnuradio on my Raspberry Pi. It took a lot of digging (googling) but thanks to many users who encountered similar challenges, I was able to piece together the recipe below, that should result in a compiled gnu radio installation.

Although Patch VonBraun's GNURadio build script didn't do the trick, I used it for reference when coming up with the following steps.

In the following section, lines starting with "#" should be executed as the root user. Lines starting with "$" may be executed as your favorite raspberry pi user.

Install prerequisites

  # apt-get install python-cheetah libboost-all-dev python-lxml python-wxgtk2.8 python-numpy python-lxml libfftw3-dev libsdl1.2-dev python-scipy python-matplotlib python-tk octave liboctave-dev libgsl0-dev python-sphinx libcppunit-dev libuhd-dev swig python-qt4-dev libqwt-dev git

* Raspberry pi wheezy/sid

build and activate an 800MB swap

(Credit to bredman@raspberrypi.org for posting these steps on the forum - thank you)


  # swapoff
  # swapoff -a
  # sudo dd if=/dev/zero of=/myswap bs=1024 count=800k
  # mkswap /myswap
  # free -m
  # swapon /myswap
  # free -m
 

Check-out the latest copy of the gnuradio source tree

  $ time git clone http://gnuradio.org/git/gnuradio.git
 

cd into the build directory and run cmake.

  $ cmake -Dhave_mfpu_neon=0 -DCMAKE_CXX_FLAGS:STRING="-march=armv6 -mfpu=vfp -mfloat-abi=hard" -DCMAKE_C_FLAGS:STRING="-march=armv6 -mfpu=vfp -mfloat-abi=hard" ../
 

Compile (Takes about 24 hours!)

  $ make
 

Install

  $ sudo make install



Remaining Tasks

• Get osmosdr, gr-baz, and any other extras to compile.