GNU Radio version

Question

How do I find out the version of GNU Radio that I have installed?

I would like the use their messaging libraries, but they are available on newer versions of gnuradio only and for some reason I'm getting a compilation error when I try to use the following code:

message_port_register_out(pmt::mp("out_message"));

I get the following error on compilation:

error: ‘message_port_register_out’ was not declared in this scope

It's supposed to be part of the gr_basic_block, which all blocks inherit from, but it's not compiling.

Haplite

Answer 1

You can get the version number using python.

from gnuradio import gr
gr.version()

Emmenagogue

Answer 2

If you installed the complete package - not only the library - in a terminal window:

$ gnuradio-companion --version

GNU Radio Companion 3.7.2.1

or

$ gnuradio-config-info --version
3.7.2.1

Midlands

I'm not aware of any distribution that would offer the GNU Radio library without gnuradio-config-info, but I do believe that such exists. Can you enlighten me on where that happens? – Tater

Wow, this was a year ago! I believe I meant that gnuradio-companion might not always be available. That's what the reply said too: The idea is that the library is always available, but not always grc. It's been a while, but I believe grc can be disabled from configure – Midlands

Answer 3

According to the docs, message_port_register_out is a member of gr_basic_block. Based on the compilation error you have posted and the code snippet, I'd assume you need an instance to work with. It's hard to tell without more context however.

Fay

Well, what about the first part of the question. How do I find out the version of gnuradio i have installed? – Haplite

It's written in the constructor of a source block. – Haplite

Not knowing much about your particular system setup, the best I could offer is a find command. Something like find /usr/lib -name 'lib*radio* - this should yield you some result like libgnuradiosomething.so.3.61 or something similar. Sorry I can't be more precise here. Also check /usr/local/lib – Fay