Re: [Discuss-gnuradio] OS X GnuRadio Tutorial question

[Michael Dickens]

Hi Jim - Great to hear from another OS X GNU Radio user!

 

The issue is likely that MacPorts' 'python' expects its packages to be installed into /opt/local somewhere, not /usr/local . I sure there's a way to set various environment variables to find the installed files, but it's easier to just install them where MacPorts' Python and Apple's library loader (DYLD) will look for them.

 

Here's what I would recommend *** all from your OOT's build directory ***:

 

1) "make uninstall" (sudo or not as needed); hopefully this step will remove everything from /usr/local that it installed. If not, I'd highly recommend removing it by hand.

 

2) if the build directory is separate from the source directory (as we recommend), then "rm -rf *". If they are the same, then do "make clean" or "make distclean" to remove the build cruft. You do, unfortunately, need to start with a clean CMake build.

 

3) Follow the instructions from < http://gnuradio.org/redmine/projects/gnuradio/wiki/MacInstall#Compiling-GNU-Radio-from-Source >, but add in to the CMake command line "-DCMAKE_INSTALL_PREFIX=/opt/local" (as described towards the end of that section in the paragraph starting "By default ..."). You can choose some other compiler via changing the "CC=... CXX=..." parts; or, just omit them entirely to use the defaults provided by Xcode.

 

3.1) "make"

3.2) "make test"

 

4) "sudo make install" to get your OOT installed into /opt/local ... you'll need the "sudo" because you're installing into the normal MacPorts area, which by default is owned by "root". If you look through where files are installed, they should be into:

 

/opt/local/bin/

/opt/local/lib/

/opt/local/share/gnuradio/

/opt/local/share/cmake/

/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/

 

... and, if not, then I/we need to work on fixing options to work more robustly (at least for OS X).

 

Hope this helps! - MLD

 

On Mon, Apr 25, 2016, at 06:22 AM, jim Schimpf wrote:

 I have installed GnuRadio via “port” on OS X 10.11.4 and it runs with my RTL dongle.  I am working through the GnuRadio Tutorials and am on this one (http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorial_GNU_Radio_in_Python) building new blocks. I have followed the tutorial, building the multiply_py_ff block and run it directly in Python which works.  When I try to build it so gnuradio-companion can use it all the steps work except for the last “sudo ldconfig” as ”ldconfig” is not present. in OS X  The block does not appear in the list of available blocks when I run gnuradio-companion.  

 

The "make install" ran OK and put things in the right places. How do I fix this so the new block appears in gnuradio-companion ?  I searched the group and didn’t find a reference to this particular problem.

 

The make install did write the XML to the block directory that gnuradio-companion uses:

 

-------------------------------

-- Installing: /usr/local/share/gnuradio/grc/blocks/tutorial_multiply_py_ff.xml

 

Startup of gnuradio-companion

 

Preferences file: /Users/jim/.gnuradio/grc.conf

Block paths:

/opt/local/share/gnuradio/grc/blocks

/Users/jim/.grc_gnuradio

-------------------------------

 

Thank you for the help.

 

Also I am using PyCharm as my Python IDE and found to use it on my install of GnuRadio I created a new project and set the Python interpreter to /opt/local/bin/python2.7. it then works just fine with the GnuRadio python code.