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Re: [Discuss-gnuradio] [USRP-users] Mac OS X 10.10 Advice

From: Michael Dickens
Subject: Re: [Discuss-gnuradio] [USRP-users] Mac OS X 10.10 Advice
Date: Thu, 30 Oct 2014 09:24:43 -0400

As pointed out elsewhere [1], you can work around the libxml2 issue by running 
GRC while forcing MacPorts’ libxml2 library to load first via:
DYLD_INSERT_LIBRARIES=/opt/local/lib/libxml2.dylib gnuradio-companion
And, otherwise, both UHD and GNU Radio seem to work on 10.10 beyond the recent 
AVX compile issue pointed out in [2] (which also has a work-around).  So, if 
you’re an OSX user of UHD and GNU Radio who needs the latest and greatest, you 
can get it all working if you’re willing to do some work-arounds.  We’re 
working on fixing all of these issues so that work-arounds are not required. - 

[1] https://trac.macports.org/ticket/45583
[2] https://trac.macports.org/ticket/45540

On Oct 19, 2014, at 9:56 PM, Michael Dickens via USRP-users <address@hidden> 
> GNU Radio and UHD seem to generally work well with the recently released Mac 
> OS X 10.10.  In my testing, everything in UHD works.  And, everything in GNU 
> Radio works -except- for executing flow-graphs from with the GNU Radio 
> Companion (GRC); GRC can compile scripts (the file is created; or, via “grcc” 
> on the command line), and the resulting Python executes correctly.  But, 
> executing a compiled GRC script from within GRC fails.  I found CPU usage on 
> Wx and Qt graphs a little lower on 10.10 than prior OSs; nice!
> There is no clear solution to this issue at this time; I’m working on it as 
> time allows, but it’s looking like something that Apple will have to fix — 
> not a GNU Radio or UHD issue directly.
> Thus, my recommendation is to stay with Mac OS X 10.9 or earlier if you want 
> to be able to execute flow graphs from within GRC.  I’ll post again once I 
> know something more.  Please feel free to ping me & I’ll discuss the issue in 
> more depth with anyone interested. - MLD

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