misc: Use $(top_srcdir) for source, $(top_builddir) for libs
We should not use ../ for adding sources or libraries as the
user might have a srcdir != builddir setup.
diff --git a/openbsc/src/ipaccess/Makefile.am b/openbsc/src/ipaccess/Makefile.am
index 7a13ee1..5339321 100644
--- a/openbsc/src/ipaccess/Makefile.am
+++ b/openbsc/src/ipaccess/Makefile.am
@@ -7,6 +7,7 @@
ipaccess_find_SOURCES = ipaccess-find.c
ipaccess_config_SOURCES = ipaccess-config.c ipaccess-firmware.c
-ipaccess_config_LDADD = ../libbsc.a ../libmsc.a ../libbsc.a ../libvty.a -ldl -ldbi $(LIBCRYPT)
+ipaccess_config_LDADD = $(top_builddir)/src/libbsc.a $(top_builddir)/src/libmsc.a \
+ $(top_builddir)/src/libbsc.a $(top_builddir)/src/libvty.a -ldl -ldbi $(LIBCRYPT)
ipaccess_proxy_SOURCES = ipaccess-proxy.c ../debug.c