Conky upstream bug item #2933738 has been filed: http://sourceforge.net/tracker/?func=detail&atid=757308&aid=2933738&group_id=143975 Conky is an Audacious client and should use the audclient.pc pkgconfig file instead of audacious.pc (the latter is for plugins). If Conky continues with using audacious.pc, it will fail to build, as audacious.pc no longer adds -laudclient to the linker args.
*** Bug 565132 has been marked as a duplicate of this bug. ***
Fixed in conky-1.7.2-2.fc13.