Import suse_libbz2-12.1 as wip/suse121_libbz2.

Linux compatibility package based on the openSUSE Linux distribution.
Please visit http://www.opensuse.org/ for more information about openSUSE
Linux.

This package supports running ELF binaries linked with glibc2 that
require the libbz2 shared library.
Added suse121_libbz2
Add a patch so that backtrace works when we hit an error:

Adapt to NetBSD's backtrace_symbols() behaviour, using <> instead of ().
Also increase symbol buffer -- some mangled symbols are Long.

Also, temporarily switch to ia32.debug for the build and testing,
to be replaced by native.* eventually.
Remove BUILDLINK_CPPFLAGS.gnuradio-pkg+=   -I${BUILDLINK_PREFIX.gnuradio-pkg}/include/gnuradio, thanks obache@.