It would be nice if cdrecord-devel shipped a pkgconfig file. It would prevents people from hardcoding things like /usr/include/shily into their Makefiles (i'm thinking about cdrdao here).
which app besides cdrdao is using schily's lib?
Hmmm, a quick grep through the core and extra CVS tree reveals that only cdrdao does. Ok, obviously this is not a high priority item :-)