Re: What is the best/recommended technique for referencing development libraries?

[Mike Frysinger]

On 10 Dec 2014 22:20, Patrick Doyle wrote:
> I am playing with the Gstreamer zbar plugin, which is an
> autoconfiscated library.
> 
> It relies upon another autoconfiscated library, libzbar.
> 
> I have a custom application which loads gstzbar, which, in turn, loads
> libzbar from /usr/lib/wherever.  Everything works quite nicely, thank
> you all very much.
> 
> But now I would like to compile a custom version of libzbar, and tell
> my custom gstzbar plugin to reference that library instead of the one
> install in /usr/lib.
> 
> What's the best/recommended way to do this?
> 
> One way I could do this is via brute force.  I could uninstal the
> precompiledl libzbar, compile the new version, install it in
> /usr/local, and recognize that pkg-config will find the new one in
> /usr/local/lib.
> 
> I feel like there should be a better way to do this sort of thing.
> Any suggestions?

assuming it's for local testing only, you can use -Wl,-rpath,/path/to/libs/ 
when 
linking your programs/libs.

you could also set LD_LIBRARY_PATH when running the main program.
-mike

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