# How to add c++ modules after gnuradio-3.2.2. binary installation? **URL:** \ **Category:** GNU Radio\ **Created:** [March 27, 2010, 9:27pm UTC](https://www.ruby-forum.com/t/how-to-add-c-modules-after-gnuradio-3-2-2-binary-installation/185865 "2010-03-27T21:27:56Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Yao\_Jack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/76d3ee/32.png) [@Yao\_Jack](https://www.ruby-forum.com/u/Yao_Jack)\ **Post date:** [March 27, 2010, 9:27pm UTC](https://www.ruby-forum.com/t/how-to-add-c-modules-after-gnuradio-3-2-2-binary-installation/185865/1 "2010-03-27T21:27:56Z")
Hi I installed gnuradio-3.2.2. Binary package in Ubuntu 9.04. It was not flexible to include new c++ files (I could not find bootstrap, configure.ac files etc in usr/share/gnuradio installation directory). I then downloaded gnuradio-3.2.2.tar.gz and gr-howto-write-a-block-3.2.2.tar.gz files and unzipped them in my home folder, and gr-howto-write-a-block-3.2.2 was included as a subdirectory in the gnuradio-3.2.2 directory. I used installation commands ./bootstrap, ./configure, make, sudo make install in gnuradio-3.2.2 directory, and no error was reported. I then tried to run file qa\_howto.py (after chmod +x qa\* ) in directory gr-howto-write-a-block-3.2.2/src/python, as follows: ./qa\_howto.py Error was reported that “in import howto”, “howto” module could not be recognized. I tried many other means, including modifying makefile.am in several directories, and using installation ./bootstrap, ./configure, make, sudo make install in gr-howto-write-a-block-3.2.2 directory. No error was reported. But still ./qa\_howto.py could not work. Questions: 1. How can I make this work? 2. How can I add new functions and modules using c++ files based on gnuradio-3.2.2 binary installation? Thank you. ## Jack View this message in context: [http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28036932.html](http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28036932.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com). ---
**Author:** ![Yao\_Jack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/76d3ee/32.png) [@Yao\_Jack](https://www.ruby-forum.com/u/Yao_Jack)\ **Post date:** [March 27, 2010, 10:17pm UTC](https://www.ruby-forum.com/t/how-to-add-c-modules-after-gnuradio-3-2-2-binary-installation/185865/2 "2010-03-27T22:17:06Z")
Hi, 1. I don’t think gr-howto-write-a-block is part of the normal build environment – there’s a separate one within this directory. Try running: ./bootstrap ./configure make make check sudo make install from inside this directory (i.e gnuradio/gr-howto-write-a-block) You might run into some weird issues if you’ve installed the binary packages before compiling from source (unless youve changed the prefix) as it’s possible you’ve got two copies of gnuradio - Make sure you’ve removed the old binary installs. 1. I add new C++ blocks into my own module by following the instructions at [http://www.mail-archive.com/removed\_email\_address@domain.invalid/msg00123.html](http://www.mail-archive.com/removed_email_address@domain.invalid/msg00123.html) (and a bit of trial and error whilst I got the hang of automake etc) There might be an easier way than this however! Cheers, Tim ---
**Author:** ![Yao\_Jack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/76d3ee/32.png) [@Yao\_Jack](https://www.ruby-forum.com/u/Yao_Jack)\ **Post date:** [April 1, 2010, 9:34am UTC](https://www.ruby-forum.com/t/how-to-add-c-modules-after-gnuradio-3-2-2-binary-installation/185865/3 "2010-04-01T09:34:41Z")
Hi, Tim I Tried running: ./bootstrap ./configure make make check sudo make install from inside this directory (i.e gnuradio/gr-howto-write-a-block) But the problem was not solved for qa\_howto.py. I also ran make distclean, in gnuradio-3.2.2 source installation directory, but seems I didn’t remove binary installation. 1. Can you please tell me how to remove former binary installation? After cd /src/share/gnuradio, then I didn’t know what to do. 2. How to change prefix to specify the installed GNU directory? After fixing the howto modules, then I will check how to add new cc+ modules. Thanks. Yao Tim P.-2 wrote: > ./configure > old binary installs. > > > (I could not find bootstrap, configure.ac files etc in > > I used installation commands ./bootstrap, ./configure, make, sudo make > > recognized. > > Questions: > > [http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28036932.html](http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28036932.html) > > * * * > > Discuss-gnuradio mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [Discuss-gnuradio Info Page](http://lists.gnu.org/mailman/listinfo/discuss-gnuradio) – View this message in context: [http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28105330.html](http://old.nabble.com/How-to-add-c%2B%2B-modules-after-gnuradio-3.2.2.-binary-installation--tp28036932p28105330.html) Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com).