I am trying to work through the magical process of getting WSPR installed on a current Raspberry PI OS image. Clearly this is a complex process as I have burned up an entire weekend and not been completely successful. I have found a couple of approaches that get close... but this is not horse-shoes or hand grenades so that is not close enough.

Image: 2014-12-24-wheezy-raspbian.zip
WSPR branch release: 4903
References:
http://blogzs1jen.dyndns.org:83/category/raspberry-pi-tx/
https://groups.yahoo.com/neo/groups/WSJTgroup/conversations/messages/13134
http://blogzs1jen.dyndns.org:83/category/raspberry-pi-tx/

After some testing I came up a semi-refined process. I used that base OS image, configured the basic setting for the RPi & Wifi with no extra packages and then created an image of that config that I could deploy & redeploy on multiple 16gb SD cards to refine my process. I also documented EVERY step as I went so that I had some detailed notes. (My engineer / architect background from my day job might have popped out as I tackled this process)

A couple of key themes came up as I tried different approaches that I saw documented on the internet.

The Python PIL package has an issue and it is not clear if PILLOW is the fix or not
The F2PY path and version can be an issue especially with F2PY3.2
There seems to be some complications between Python 2.7, 3.2, and 3.4
There is an issue with python-imaging-tk depending on the install order & versions
There is an issue with python3-dev depending on the install order & versions
There is an issue with jackd2 related to needing to see the speed of the CPU in a text string

My current steps:

sudo -i (so that you don't have to run sudo for every command)
apt-get remove python-numpy -y
apt-get install python3-numpy autoconf gfortran libsamplerate0-dev cl-fftw3 libhamlib-utils libportaudio2 python3-dev -y
nano /etc/apt/sources.list
Comment out: deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
add: deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rpi
Save it
apt-get update
apt-get install python3-pil
apt-get install libjack-jackd2-0
nano /etc/apt/sources.list
Comment out: deb http://mirrordirector.raspbian.org/raspbian/ jessie main contrib non-free rpi
Un-comment: deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
apt-get update
apt-get install python-imaging-tk
apt-get install python-pmw
apt-get install portaudio19-dev
apt-get install subversion
svn co https://svn.code.sf.net/p/wsjt/wsjt/branches/wspr
cd wspr
./autogen.sh
make
sudo make install

To redo to the process you can run:

make clean && make distclean && ./autogen.sh
make && sudo make install

Using the steps above I am currently stuck in the midst of step 22. The output of that sub-step is shown below:

RUN F2PY w.so
--------------------
/usr/bin/f2py3 -c --quiet --fcompiler=gnu95 --f77exec=gfortran --f90exec=gfortran \
--opt="-cpp -fbounds-check -O2" thnix.o -lfftw3f -lgfortran -lportaudio -lpthread -lsamplerate libwspr.a -m w wspr1.f90 getfile.f90 paterminate.f90 audiodev.f90
rmbadname1: Replacing "len" with "len_bn".
{}
{'attrspec': ['intent(in)']}
{'attrspec': ['intent(in)']}
   Building module "w"...
       Constructing wrapper function "wspr1"...
          wspr1()
       Constructing wrapper function "getfile"...
          getfile(fname,len_bn)
       Constructing wrapper function "paterminate"...
          paterminate()
       Constructing wrapper function "audiodev"...
          inbad,outbad = audiodev(jdevin,jdevout)
   Wrote C/API module "w" to file "/tmp/tmpn9wngzym/src.linux-armv6l-3.4/wmodule.c"
   Fortran 77 wrappers are saved to "/tmp/tmpn9wngzym/src.linux-armv6l-3.4/w-f2pywrappers.f"
cc1: error: unrecognized command line option ‘-fstack-protector-strong’
cc1: error: unrecognized command line option â-fstack-protector-strongâ
error: Command "arm-linux-gnueabihf-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -fPIC -I/tmp/tmpn9wngzym/src.linux-armv6l-3.4 -I/usr/lib/python3/dist-packages/numpy/core/include -I/usr/include/python3.4m -c /tmp/tmpn9wngzym/src.linux-armv6l-3.4/fortranobject.c -o /tmp/tmpn9wngzym/tmp/tmpn9wngzym/src.linux-armv6l-3.4/fortranobject.o" failed with exit status 1
Makefile:162: recipe for target 'WsprMod/w.so' failed
make: *** [WsprMod/w.so] Error 1

I have tried a couple of other recipes based upon those links at the top of this post but they all had some pretty complex issues with PIL/Pillow and versioning that I was unable to completely resolve.

It is a bit disappointing that there is a WSJT package (deb) for the Raspberry PI that seems to work without all of this non-sense but not for WSRP. This level of complexity and time commitment is beyond what many ham radio operators (and builders) really want to invest since it is a software issue.

I would love to get this resolved as I think that it would be fun to use my Raspberry PI as the platform for digital mode operations in my shack. Yes, I have more powerful computers with more full featured operating systems but that is not really what I want. I was thinking of the RPi + FLDigi + WSPR +WSJT tied my Elecraft K2 or something similar in a dedicated position in my shack away from the other operating positions. Digital + QRP (5 watts or less) seems like a good use the RPi.

Hopefully these notes help someone else to get WSPR running on a RPi with a current OS stack. I will keep playing but it is hard to think that I will spend this much time on again anytime soon.

73 de NG0R