nss: only link to yajl library and nothing else

Now that the code does not refer to any libvirt headers,
except internal.h macros, it does not need to link to
any libvirt code, nor gnulib either. The only thing it
needs is yajl.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

tools/Makefile.am

@@ -493,8 +493,8 @@ nss_libnss_libvirt_impl_la_CFLAGS = \
 	$(NULL)
 
 nss_libnss_libvirt_impl_la_LIBADD = \
-	../gnulib/lib/libgnu.la \
-	../src/libvirt-nss.la
+	$(YAJL_LIBS) \
+	$(NULL)
 
 nss_libnss_libvirt_la_SOURCES =
 nss_libnss_libvirt_la_LDFLAGS = \
@@ -524,8 +524,8 @@ nss_libnss_libvirt_guest_impl_la_CFLAGS = \
 	$(NULL)
 
 nss_libnss_libvirt_guest_impl_la_LIBADD = \
-	../gnulib/lib/libgnu.la \
-	../src/libvirt-nss.la
+	$(YAJL_LIBS) \
+	$(NULL)
 
 nss_libnss_libvirt_guest_la_SOURCES =
 nss_libnss_libvirt_guest_la_LDFLAGS = \