diff --git a/extractaudio/Makefile.am b/extractaudio/Makefile.am
index b1ad89568..088b5254e 100644
--- a/extractaudio/Makefile.am
+++ b/extractaudio/Makefile.am
@@ -18,7 +18,7 @@ extractaudio_SOURCES=extractaudio.c decoder.c rtpp_loader.c ${MAINSRCDIR}/rtp.c
   $(rtpp_netaddr_AUTOSRCS) eaud_oformats.c eaud_oformats.h rtpp_scan_pcap.c rtpp_scan_pcap.h \
   eaud_pcap.c eaud_pcap.h eaud_substreams.c eaud_substreams.h
 extractaudio_LDADD=@LIBS_G729@ @LIBS_GSM@ @LIBS_G722@ @LIBS_SNDFILE@ -lm -lpthread
-extractaudio_CPPFLAGS = -I$(RTPP_AUTOSRC_DIR)
+extractaudio_CPPFLAGS = -I$(RTPP_AUTOSRC_DIR) -D_BSD_SOURCE
 if BUILD_CRYPTO
 extractaudio_SOURCES+=eaud_crypto.c eaud_crypto.h srtp_util.c srtp_util.h
 extractaudio_LDADD+=@LIBS_SRTP@
diff --git a/extractaudio/eaud_pcap.c b/extractaudio/eaud_pcap.c
index d1e2d8ffd..19a31555a 100644
--- a/extractaudio/eaud_pcap.c
+++ b/extractaudio/eaud_pcap.c
@@ -25,6 +25,10 @@
  *
  */
 
+#ifndef __FAVOR_BSD
+#define __FAVOR_BSD
+#endif /* __FAVOR_BSD */
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
diff --git a/libexecinfo/execinfo_testfunc1.c b/libexecinfo/execinfo_testfunc1.c
index c8f373e9f..6fdd471bb 100644
--- a/libexecinfo/execinfo_testfunc1.c
+++ b/libexecinfo/execinfo_testfunc1.c
@@ -25,6 +25,7 @@
  *
  */
 
+#define _BSD_SOURCE
 #include <stdlib.h>
 
 #include "execinfo_testfunc1.h"
diff --git a/makeann/Makefile.am b/makeann/Makefile.am
index 2d3433f8d..0eb7d2096 100644
--- a/makeann/Makefile.am
+++ b/makeann/Makefile.am
@@ -8,7 +8,7 @@ extractaudio_SRCDIR=$(top_srcdir)/extractaudio
 makeann_SOURCES=makeann.c rtp.h g711.h $(extractaudio_SRCDIR)/g729_compat.c \
   $(extractaudio_SRCDIR)/g729_compat.h
 makeann_LDADD=@LIBS_G729@ @LIBS_GSM@ @LIBS_G722@
-makeann_CPPFLAGS=-I$(extractaudio_SRCDIR)
+makeann_CPPFLAGS=-I$(extractaudio_SRCDIR) -D_BSD_SOURCE
 
 makeann_debug_SOURCES = $(makeann_SOURCES) $(RTPP_MEMDEB_CORESRCS)
 makeann_debug_LDADD = $(makeann_LDADD) $(RTPP_MEMDEB_LDADD)
diff --git a/modules/acct_csv/Makefile.am b/modules/acct_csv/Makefile.am
index d73176a09..3f03de740 100644
--- a/modules/acct_csv/Makefile.am
+++ b/modules/acct_csv/Makefile.am
@@ -4,11 +4,12 @@ pkglib_LTLIBRARIES = rtpp_acct_csv.la rtpp_acct_csv_debug.la
 
 rtpp_acct_csv_la_SOURCES = rtpp_acct_csv.c
 rtpp_acct_csv_la_LDFLAGS = -avoid-version -module -shared -export-dynamic
+rtpp_acct_csv_la_CPPFLAGS= -D_BSD_SOURCE
 
 rtpp_acct_csv_debug_la_SOURCES = ${rtpp_acct_csv_la_SOURCES}
 rtpp_acct_csv_debug_la_LIBADD = $(RTPP_MEMDEB_LDADD)
 rtpp_acct_csv_debug_la_LDFLAGS=${rtpp_acct_csv_la_LDFLAGS}
-rtpp_acct_csv_debug_la_CPPFLAGS=-DRTPP_DEBUG
+rtpp_acct_csv_debug_la_CPPFLAGS=$(rtpp_acct_csv_la_CPPFLAGS) -DRTPP_DEBUG
 rtpp_acct_csv_debug_la_CFLAGS=$(RTPP_MEMDEB_CFLAGS)
 
 DEFS=	-Wall @DEFS@
diff --git a/modules/acct_rtcp_hep/Makefile.am b/modules/acct_rtcp_hep/Makefile.am
index 904f63c07..23e21f379 100644
--- a/modules/acct_rtcp_hep/Makefile.am
+++ b/modules/acct_rtcp_hep/Makefile.am
@@ -14,14 +14,14 @@ rtpp_acct_rtcp_hep_la_SOURCES = rtpp_acct_rtcp_hep.c rtcp2json.c rtpp_sbuf.c \
 rtpp_acct_rtcp_hep_la_LDFLAGS = -avoid-version -module -shared -export-dynamic
 rtpp_acct_rtcp_hep_la_CPPFLAGS = -DRTPP_MODULE -Dmalloc=mod_malloc \
   -Dfree=mod_free -Drealloc=mod_realloc -I$(HEPSRCDIR) -I$(UCLSRCDIR)/include
-rtpp_acct_rtcp_hep_la_CFLAGS=-std=c11 -D_XOPEN_SOURCE
+rtpp_acct_rtcp_hep_la_CFLAGS=-std=c11 -D_BSD_SOURCE -D_XOPEN_SOURCE
 #rtpp_acct_rtcp_hep_la_LIBADD = -lz
 
 rtpp_acct_rtcp_hep_debug_la_SOURCES = $(rtpp_acct_rtcp_hep_la_SOURCES)
 rtpp_acct_rtcp_hep_debug_la_LIBADD = $(rtpp_acct_rtcp_hep_la_LIBADD) $(RTPP_MEMDEB_LDADD)
 rtpp_acct_rtcp_hep_debug_la_LDFLAGS=$(rtpp_acct_rtcp_hep_la_LDFLAGS)
 rtpp_acct_rtcp_hep_debug_la_CPPFLAGS=$(rtpp_acct_rtcp_hep_la_CPPFLAGS) -DRTPP_DEBUG
-rtpp_acct_rtcp_hep_debug_la_CFLAGS=$(RTPP_MEMDEB_CFLAGS) -std=c11 -D_XOPEN_SOURCE
+rtpp_acct_rtcp_hep_debug_la_CFLAGS=$(RTPP_MEMDEB_CFLAGS) $(rtpp_acct_rtcp_hep_la_CFLAGS)
 
 DEFS=	-Wall @DEFS@
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 0df00e652..00e114129 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -96,7 +96,8 @@ rtpp_rzmalloc_perf_CFLAGS = $(EXTRA_CFLAGS)
 rtpp_rzmalloc_perf_CPPFLAGS = $(EXTRA_CPPFLAGS)
 
 RTPP_COMMON_CPPFLAGS=-DCFILE_PATH='"$(sysconfdir)/@PACKAGE@.conf"' \
-  -DMDDIR_PATH='"$(libdir)/@PACKAGE@"' -I$(UCL_DIR)/include
+  -DMDDIR_PATH='"$(libdir)/@PACKAGE@"' -I$(UCL_DIR)/include \
+  -D_BSD_SOURCE
 EXTRA_CFLAGS=-Werror=implicit-function-declaration -Wall
 
 EXTRA_CPPFLAGS = -I$(RTPP_AUTOSRC_DIR)
@@ -113,7 +114,7 @@ rtpproxy_CFLAGS=$(EXTRA_CFLAGS)
 rtpproxy_CPPFLAGS=$(RTPP_COMMON_CPPFLAGS) $(EXTRA_CPPFLAGS)
 
 rtpp_objck_perf_CFLAGS=$(EXTRA_CFLAGS)
-rtpp_objck_perf_CPPFLAGS=$(EXTRA_CPPFLAGS)
+rtpp_objck_perf_CPPFLAGS=$(EXTRA_CPPFLAGS) -D_BSD_SOURCE
 rtpp_objck_CFLAGS=$(rtpp_objck_perf_CFLAGS) $(RTPP_MEMDEB_CFLAGS)
 rtpp_objck_CPPFLAGS=$(rtpp_objck_perf_CPPFLAGS) $(RTPP_MEMDEB_CPPFLAGS) -DMEMDEB_APP=rtpp_objck