Index: ladspa_sdk/src/makefile
===================================================================
--- ladspa_sdk.orig/src/makefile
+++ ladspa_sdk/src/makefile
@@ -36,6 +36,10 @@ MKDIR_P		=	mkdirhier
 # RULES TO BUILD PLUGINS FROM C OR C++ CODE
 #
 
+../plugins/filter.so:	plugins/filter.c ladspa.h
+	$(CC) $(CFLAGS) $(INCLUDES) -fPIC -o plugins/filter.o -c plugins/filter.c
+	$(LD) $(RAW_LDFLAGS) -o ../plugins/filter.so plugins/filter.o -shared -lm
+
 ../plugins/%.so:	plugins/%.c ladspa.h
 	$(CC) $(CFLAGS) $(INCLUDES) -fPIC -o plugins/$*.o -c plugins/$*.c
 	$(LD) $(RAW_LDFLAGS) -o ../plugins/$*.so plugins/$*.o -shared