diff --git a/common/utils/itti/Makefile.am b/common/utils/itti/Makefile.am
index ced16999df519a710c151ccc86599153c4d37f95..93f57046032a3db9fea32c30b12488a59da1e0c2 100644
--- a/common/utils/itti/Makefile.am
+++ b/common/utils/itti/Makefile.am
@@ -6,10 +6,12 @@ AM_CFLAGS = @ADD_CFLAGS@ 	\
 
 noinst_LTLIBRARIES = libitti.la
 
-$(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a:
-	@if [ ! -d $(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611/bin ]; then mkdir -p $(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611/bin; fi;
-	@if [ ! -d $(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611/obj ]; then mkdir -p $(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611/obj; fi;
-	@$(MAKE) -C $(OPENAIR2_DIR)/UTIL/LFDS/liblfds6.1.1/liblfds611/ -f makefile.linux OUTDIR=$(abs_builddir)/UTIL/LFDS/liblfds6.1.1/liblfds611
+BUILT_SOURCES = $(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
+
+$(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a:
+	@if [ ! -d $(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin ]; then mkdir -p $(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin; fi;
+	@if [ ! -d $(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/obj ]; then mkdir -p $(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/obj; fi;
+	@$(MAKE) -C $(OPENAIR2_DIR)/UTIL/LFDS/liblfds6.1.1/liblfds611/ -f makefile.linux OUTDIR=$(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611
 
 libitti_la_LDFLAGS = -all-static
 libitti_la_SOURCES =							\
diff --git a/openair-cn/OAISIM_MME/Makefile.am b/openair-cn/OAISIM_MME/Makefile.am
index 4b13c687bfdc67cb339264466d3f945cd2773f63..d8c19ac574b5ea1902e00011a959dc45af8fa4db 100644
--- a/openair-cn/OAISIM_MME/Makefile.am
+++ b/openair-cn/OAISIM_MME/Makefile.am
@@ -34,7 +34,7 @@ oaisim_mme_LDADD = \
 	$(top_builddir)/SECU/libsecu.la	\
 	$(top_builddir)/UTILS/libutils.la	\
 	$(top_builddir)/GTPV2-C/nwgtpv2c-0.11/src/libNwGtpv2c.a	\
-	$(top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
+	$(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
 
 oaisim_mme_SOURCES = \
 	oai_mme_log.c	\
diff --git a/openair-cn/OAI_EPC/Makefile.am b/openair-cn/OAI_EPC/Makefile.am
index 566f0c52fffee2aa7fde11760665d1df6b381197..8b8f6e6ce8138ad011960d0f555df98f7ffaddf9 100644
--- a/openair-cn/OAI_EPC/Makefile.am
+++ b/openair-cn/OAI_EPC/Makefile.am
@@ -3,7 +3,7 @@ AM_CFLAGS = @ADD_CFLAGS@ \
 	-I$(top_srcdir)/COMMON				\
 	-I$(top_srcdir)/GTPV1-U				\
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/include	\
-	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared		\
+	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared	\
 	-I$(top_srcdir)/SCTP				\
 	-I$(top_srcdir)/NAS/EURECOM-NAS/src/api/network	\
 	-I$(top_srcdir)/NAS/EURECOM-NAS/src/include	\
@@ -36,7 +36,7 @@ oai_epc_LDADD = \
 	$(top_builddir)/SECU/libsecu.la	\
 	$(top_builddir)/UTILS/libutils.la	\
 	$(top_builddir)/S1AP/libs1ap.la	\
-	$(top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
+	$(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
 
 oai_epc_SOURCES = \
 	oai_epc_log.c	\
diff --git a/openair-cn/OAI_SGW/Makefile.am b/openair-cn/OAI_SGW/Makefile.am
index d84af09bbd1b9dba1a35c3bc5af06108f9740a31..11b889010ea97f4da6624136107f4fe2f67b7d5f 100644
--- a/openair-cn/OAI_SGW/Makefile.am
+++ b/openair-cn/OAI_SGW/Makefile.am
@@ -3,7 +3,7 @@ AM_CFLAGS = @ADD_CFLAGS@ \
 	-I$(top_srcdir)/COMMON				\
 	-I$(top_srcdir)/GTPV1-U				\
 	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/include	\
-	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared		\
+	-I$(top_srcdir)/GTPV1-U/nw-gtpv1u/shared	\
 	-I$(top_srcdir)/NAS/EURECOM-NAS/src/api/network	\
 	-I$(top_srcdir)/NAS/EURECOM-NAS/src/include	\
 	-I$(top_srcdir)/INTERTASK_INTERFACE		\
@@ -25,7 +25,7 @@ oai_sgw_LDADD = \
 	$(top_builddir)/UDP/libudpserver.la	\
 	$(top_builddir)/SECU/libsecu.la	\
 	$(top_builddir)/UTILS/libutils.la	\
-	$(top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
+	$(abs_top_builddir)/INTERTASK_INTERFACE/UTIL/LFDS/liblfds6.1.1/liblfds611/bin/liblfds611.a
 
 oai_sgw_SOURCES = \
 	oai_sgw_log.c	\