bug: https://bugs.launchpad.net/ubuntu/+source/xawtv/+bug/821916
patch: http://bazaar.launchpad.net/~jtaylor/ubuntu/oneiric/xawtv/fix-821916/revision/25/debian/patches/104_fix_plugin_links.dpatch

fix linking for as-needed

--- libng/plugins/Subdir.mk
+++ libng/plugins/Subdir.mk
@@ -41,6 +41,9 @@
 libng/plugins/write-qt.so : LDLIBS := $(QT_LIBS)
 libng/plugins/read-dv.so  : LDLIBS := $(DV_LIBS)
 libng/plugins/write-dv.so : LDLIBS := $(DV_LIBS)
+libng/plugins/flt-disor.so: LDLIBS := -lm
+libng/plugins/flt-gamma.so: LDLIBS := -lm
+libng/plugins/conv-mjpeg.so: LDLIBS := -ljpeg
 
 # global targets
 all:: $(TARGETS-plugins)