Index: trunk/src_3rd/libuhpgl/examples/Makefile
===================================================================
--- trunk/src_3rd/libuhpgl/examples/Makefile	(revision 11227)
+++ trunk/src_3rd/libuhpgl/examples/Makefile	(revision 11228)
@@ -1,5 +1,6 @@
 CFLAGS = -I../..
 CFLAGS += -Wall -g -ansi -pedantic
+LDFLAGS = -lm
 
 dump_hpgl: dump_hpgl.o ../parse.o