Re: [Discuss-gnuradio] ABI compatibility error for installing Gnuradio and UHD respectively

[Josh Blum]

On 06/04/2012 01:55 PM, Alex Zhang wrote:
> Hi List,
> 
> I install the gnuradio and UHD in different time, and when I run a python
> script, it tells me:
> 
> RuntimeError:
> GR-UHD detected ABI compatibility mismatch with UHD library.
> GR-UHD was build against ABI: 3.4.0-1,
> but UHD library reports ABI: 3.4.0-2
> Suggestion: install an ABI compatible version of UHD,
> or rebuild GR-UHD component against this ABI version
> 

There error is working perfectly! Rather than silently failing you get a
nice error. Read about ABI
https://en.wikipedia.org/wiki/Application_binary_interface

The installed version of the gnuradio-uhd library was compiled against
UHD library of version X, but you installed UHD library version Y.
Version X and version Y do not have matching ABIs. You should build
gr-uhd against the same version of UHD that you have installed.

-josh

> I don't want to change the gnuradio, but want to rollback the UHD driver to
> ABI with 3.4.0-1.
> I have tried the git checkout release_003_004_001 and make/install, but it
> seems the ABI is changed to  3.4.0-0.
> Thus I found the file ~/uhd/host/include/uhd/version.hpp, and go through
> the git log to indicate that the ABI is changed
> with one commit. And then I git checkout to that commit version and
> make/install again.  The problem solved.
> 
> However, can anyone told me what the ABI is used for? And how can I ensure
> every time the GNURadio is comaptible with
> the installed UHD? Is it corret for what I did for this mismatch problem,
> or any other way?
> 
> I searched archive but did not find related errors ever posted.
>