Re: [Discuss-gnuradio] Build Configuration Q

[Eric Blossom]

On Thu, Jan 17, 2008 at 09:54:55AM -0500, Michael Dickens wrote:
> I'm working (again) on the MacPorts port and files associated with GNU 
> Radio, playing with GNU Radio's "Build Configuration" options in order to 
> get a separate package for each component (e.g. one each for 
> "gnuradio-core", "usrp", "gr-usrp", and so forth).  I note that on the 
> BuildConfiguration wiki page < 
> http://www.gnuradio.org/trac/wiki/BuildConfiguration >, under "WARNING" it 
> reads:
>
> "Individual GNU Radio components may depend upon other components (such as 
> gnuradio-core) to successfully compile. In particular, during a build the 
> library and include search paths point to the current build tree, not the 
> system installation path. So one will need to either have compiled the 
> dependent components already in a prior build (not necessary to install 
> them), or one will have to build all the related components at once."
>
> While this is desirable from the perspective of maintaining consistency 
> among the various components (same version, or save SVN revision; when one 
> is updated, the other will be recompiled as well, and so forth), it makes 
> building separate components somewhat of a PITA when using MacPorts:
>
> * creating the gnuradio-core package requires just omnithread, which is 
> fine since that's not a big extra compile, but ...
>
> * creating the gr-usrp package requires the (re)compilation of usrp, 
> gnuradio-core, and omnithread .. which is "up there" in terms of time 
> because of (re)compiling gnuradio-core.
>
> For MacPorts, I don't have the option of re-using a single compiled trunk 
> or tarball; I have to recompile everything for each component.  While I can 
> write Portfile's that can do this, it would be easier if there was a way 
> around it - using some specific CONFIGURE options or MAKE environment 
> variables that do allow for compiling just the component itself instead of 
> it and all of its dependencies (which are already installed by MacPorts).
>
> Anyone know how to do this, or is it really just impossible? - MLD

Michael, this is ticket:186, "Add option to disable intree
dependencies", aka the "pkgsrc enhancement".  Right now it's not
possible.

Eric