bsc_mgcp: use top_builddir instead of top_srcdir
diff --git a/openbsc/src/osmo-bsc_mgcp/Makefile.am b/openbsc/src/osmo-bsc_mgcp/Makefile.am
index b72c46c..0dc4103 100644
--- a/openbsc/src/osmo-bsc_mgcp/Makefile.am
+++ b/openbsc/src/osmo-bsc_mgcp/Makefile.am
@@ -5,5 +5,5 @@
bin_PROGRAMS = bsc_mgcp
bsc_mgcp_SOURCES = mgcp_main.c
-bsc_mgcp_LDADD = $(top_srcdir)/src/common/libcommon.a $(top_srcdir)/src/mgcp/libmgcp.a \
+bsc_mgcp_LDADD = $(top_builddir)/src/common/libcommon.a $(top_builddir)/src/mgcp/libmgcp.a \
$(LIBOSMOVTY_LIBS)