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Re: [Discuss-gnuradio] Quesition Signal Processing Block: Compilation Er

From: Jonas
Subject: Re: [Discuss-gnuradio] Quesition Signal Processing Block: Compilation Errors Regarding Multiple Definition
Date: Tue, 15 Jan 2008 11:14:10 +0800


I'll try this.


On 1/15/08, Eric Blossom <address@hidden> wrote:
> On Mon, Jan 14, 2008 at 07:40:26PM +0800, Jonas wrote:
> > I have a question.
> >
> > I am trying to make 4 signal processing blocks wherein some of the
> > definitions for its computations will be REPEATEDLY defined. I really
> intend
> > this. However, basing from the gr-howto module (of which I used the
> built-in
> > dependencies there), the compiler ALWAYS COMPLAINS of a multiple
> definition
> > of something that I REALLY INTEND to define repeatedly. This is due to the
> > fact that the four signal processing blocks that I made share some COMMON
> > signal processing manipulations.
> >
> > I want to be able to ignore this error and compile the four signal
> > processing blocks simultaneously. Is this possible with GNU Radio?
> >
> > Thanks!
> Don't define the function multiple times, define it once, and include
> it in the shared library that you build for the swig module.
> E.g., in the "howto" example, create a new file
> my_shared_functions.cc, and add it to _howto_la_SOURCES.
> If this doesn't make sense, you may want to read up on shared
> libraries, automake and libtool.
> Eric

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