Index: Makefile.conf.in
===================================================================
--- Makefile.conf.in	(revision 1413)
+++ Makefile.conf.in	(revision 1414)
@@ -7,6 +7,10 @@
 # For debug, comment the above and uncomment this one:
 #CFLAGS_CFG = -Wall -g
 
+# In case you want to append to LDFLAGS or LDLIBS:
+#LDFLAGS_CFG =
+#LDLIBS_CFG =
+
 # On windows you need to enable this
 #EXE=.exe
 
Index: src/route-rnd/Makefile.conf
===================================================================
--- src/route-rnd/Makefile.conf	(revision 1413)
+++ src/route-rnd/Makefile.conf	(revision 1414)
@@ -1,6 +1,6 @@
 CFLAGS_RTRND = $(CFLAGS_CFG) -I. -I$(ROOT)/src_3rd -I$(ROOT)/src/plugins
-LDLIBS_RTRND = $(LOCLIBS)
-LDFLAGS_RTRND = -lm
+LDLIBS_RTRND = $(LOCLIBS) $(LDLIBS_CFG)
+LDFLAGS_RTRND = -lm $(LDFLAGS_CFG)
 LOCLIBS_RTRND = \
 	$(ROOT)/src_3rd/genvector/libgenvector.a \
 	$(ROOT)/src_3rd/genht/libgenht.a \