--- fslurp-2.1.4/Makefile
+++ fslurp-2.1.4/Makefile
@@ -51,35 +51,35 @@
 INCLUDES	= fslurp.h fronius.h
 SIMINCLUDES	= simulator.h
 
-DEBUGFLAGS	= -g
-CFLAGS		= -c -Wall $(DEBUGFLAGS)
+#DEBUGFLAGS	= -g
+CFLAGS		+= -c -Wall $(DEBUGFLAGS)
 
-LDFLAGS		= -lm
+LIBS		= -lm
 
 VERSION		:= fslurp-$(shell tail -1 version)
 
 all:		$(TARGETS)
 
 fslurp:		$(FSLURP_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 simSolarNet2i1s: \
 		$(SIMSOLARNET2I1S_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 simSolarNet1i0s: \
 		$(SIMSOLARNET1I0S_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 simSolarNet0i0s: \
 		$(SIMSOLARNET0I0S_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 simIFCEasy:	$(SIMIFCEASY_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 sim422IGTL:	$(SIM422IGTL_OBJS)
-		$(CC) $(LDFLAGS) $^ -o $@
+		$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
 
 test:		$(TARGETS) clean
 		./testcase.sh