Re: [Discuss-gnuradio] Re: Compiling on OSX 10.5

[Philip Balister]

Jason Uher wrote:
> > The first problem I have is that macports installs libusb as
> > libusb-1.0; meaning that I get the following output from configure:
>
> I was told this is solved by installing the macports package
> libusb-compat, it makes libusb-1.0 backwards compatible (and compiling
> went great!)
>
> Now there is an issue with make check, I know that the make check for
> the usrp and os x has recently been changed because it was throwing
> errors, I'm not sure if this is related or not...
> <snip>
> make  check-TESTS
> Traceback (most recent call last):
>   File "./qa_usrp.py", line 24, in <module>
>     import usrp_swig
>   File "/Users/jason/coderepos/gnuradio/gr-usrp/src/usrp_swig.py",
> line 27, in <module>
>     import _usrp_swig
> ImportError: 
> dlopen(/Users/jason/coderepos/gnuradio/gr-usrp/src/.libs/_usrp_swig.so,
> 2): Symbol not found: _usb_error_str
>   Referenced from:
> /Users/jason/coderepos/gnuradio/usrp/host/lib/.libs/libusrp.0.dylib
>   Expected in: dynamic lookup
>
> FAIL: run_tests
> <snip>
>
> This same error is given when I run usrp_oscope after a make install.

GNURadio uses a variable from the internals of libusb. libusb-compat 
changes the private libusb struct that gnuradio has a local copy off.

Bottom line: libusb-compat only works for programs that use the 
published API of libusb. GNU Radio goes beyond the public API.

Philip


> Jason
>
>
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