Re: [Discuss-gnuradio] Having difficulty with compiling in Ubuntu 8.04... due to QT3/QT4

[Rob Frohne]

Hi Everyone,

After removing qt3-mt-dev, gnuradio builds just fine on Ubuntu 8.04.  I 
don't think this is the real solution, but a work around because I at 
least still have some qt3 legacy code I haven't rewritten in QT4.

73,

Rob, KL7NA


Rob Frohne wrote:
> Hi All,
>
> I'm having difficulty compiling in Ubuntu 8.04 because some stuff from 
> QT isn't found, for example, qmemarray.h, which I can find in 
> /usr/include/qt3/qmemarray.h, however, I thought it should be using 
> QT4 instead of QT3, and I have installed qwt 5.0.2-2 from the Ubuntu 
> repository.  As of January 2008, the wiki says you must compile from 
> source, but it looks like it is in the repository now.  The 
> interesting thing, is I have another machine running 8.10 instead of 
> 8.04, and the header file is only in the same qt3 location there, but 
> it builds just fine.  Here is the code calling for that header:
>
> /*!
>  \def QwtArray
>  Aliases QArray (Qt-2.x) and QMemArray (Qt-3.x) to QwtArray
> */
> #ifdef QWT_NO_MEMARRAY
> #include <qarray.h>
> #define QwtArray QArray
> #else
> #include <qmemarray.h>
> #define QwtArray QMemArray
> #endif
>
> Perhaps QWT_NO_MEMARRAY is set in 8.10 and not in 8.04.
>
> Any tips would be appreciated.
>
> Thanks,
>
> Rob
>
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