Implement stubs for missing functions on Solaris.  This at least gets us a
working package - help fleshing them out with actual data is appreciated.
Add an explicit -lgmodule-2.0 for Solaris.

Fixes package build.
Some fixes for the package:

- install manpages
- replace "etc" with PKG_SYSCONFDIR in a number of locations
- replace "usr/share" with @PREFIX@/share in some places
- do some cleanup so things install with PKG_DEVELOPER set.
Avoid 'error: call of overloaded <x> is ambiguous' failures.
Add -lboost_system on SunOS.  Need lots more REPLACE_PYTHON to make the
current package PKG_DEVELOPER safe.

This along with the previous commit to meta-pkgs/gnuradio makes this
package build on SunOS.