trau: Fix linking on FreeBSD by using LIBRAY_DL
diff --git a/openbsc/tests/trau/Makefile.am b/openbsc/tests/trau/Makefile.am
index d4aa1c3..cc1b4ef 100644
--- a/openbsc/tests/trau/Makefile.am
+++ b/openbsc/tests/trau/Makefile.am
@@ -13,5 +13,5 @@
$(top_builddir)/src/libtrau/libtrau.a \
$(top_builddir)/src/libcommon/libcommon.a \
$(LIBOSMOCORE_LIBS) $(LIBOSMOABIS_LIBS) \
- $(LIBOSMOGSM_LIBS) $(LIBSMPP34_LIBS) $(LIBOSMOVTY_LIBS) -ldl -ldbi
+ $(LIBOSMOGSM_LIBS) $(LIBSMPP34_LIBS) $(LIBOSMOVTY_LIBS) $(LIBRARY_DL) -ldbi