diff --git a/openair1/PHY/LTE_ESTIMATION/freq_equalization.c b/openair1/PHY/LTE_ESTIMATION/freq_equalization.c
index 4f561238c6..6d382bdd63 100644
--- a/openair1/PHY/LTE_ESTIMATION/freq_equalization.c
+++ b/openair1/PHY/LTE_ESTIMATION/freq_equalization.c
@@ -21,6 +21,7 @@
 
 #include "PHY/defs_eNB.h"
 #include "PHY/sse_intrin.h"
+#include "PHY/LTE_ESTIMATION/lte_estimation.h"
 
 // This is 4096/(1:4096) in __m128i format
 __m128i inv_ch[4096];/* = {512,512,512,512,512,512,512,512,
diff --git a/openair1/PHY/LTE_TRANSPORT/if4_tools.c b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
index 8ec8713394..09c0b4ba0f 100644
--- a/openair1/PHY/LTE_TRANSPORT/if4_tools.c
+++ b/openair1/PHY/LTE_TRANSPORT/if4_tools.c
@@ -36,6 +36,7 @@
 #include "PHY/TOOLS/alaw_lut.h"
 //#include "PHY/phy_extern.h"
 //#include "SCHED/sched_eNB.h"
+lte_subframe_t subframe_select(LTE_DL_FRAME_PARMS *frame_parms,uint8_t subframe);
 
 //#include "targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h"
 #include "targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.h"
diff --git a/targets/ARCH/iqplayer/iqplayer_lib.c b/targets/ARCH/iqplayer/iqplayer_lib.c
index c4133d1b11..bcdb558787 100644
--- a/targets/ARCH/iqplayer/iqplayer_lib.c
+++ b/targets/ARCH/iqplayer/iqplayer_lib.c
@@ -25,7 +25,9 @@
  */
 #define _LARGEFILE_SOURCE
 #define _FILE_OFFSET_BITS 64
+#ifndef NB_ANTENNAS_RX
 #define NB_ANTENNAS_RX  2
+#endif
 #include <string.h>
 #include <pthread.h>
 #include <unistd.h>