Update patches: 012_nxcomp..., 013_nxcompext_..., 014_nxcompshad_.... Also make use of $(LIBFULL) in Makefile.in's install and uninstall stanzas. Inspired by Jan Engelhardt's so-version.diff patch. However, the version name change requested in that patch has been rejected for NX (redistributed).

Merge honor-ac-dirs.patch from Jan Engelhardt (OpenSUSE) with already existing Makefile patches (012_nxcomp..., 013_nxcompext_..., 014_nxcompshad_...).