isisd: fix --enable-isis-topology for 64-bit Linux
diff --git a/isisd/topology/Makefile.am b/isisd/topology/Makefile.am
index 2515b38..b25497c 100644
--- a/isisd/topology/Makefile.am
+++ b/isisd/topology/Makefile.am
@@ -3,6 +3,9 @@
 INCLUDES = @INCLUDES@ -I.. -I$(top_srcdir) -I$(top_srcdir)/lib
 DEFS = @DEFS@ -DSYSCONFDIR=\"$(sysconfdir)/\"
 
+AM_CFLAGS = $(PICFLAGS)
+AM_LDFLAGS = $(PILDFLAGS)
+
 noinst_LIBRARIES = libtopology.a
 
 libtopology_a_SOURCES = \