diff --git a/libowlps-client/libowlps-client.c b/libowlps-client/libowlps-client.c
index 3cbce49..f173f71 100644
--- a/libowlps-client/libowlps-client.c
+++ b/libowlps-client/libowlps-client.c
@@ -44,7 +44,7 @@ int owl_create_trx_socket(const char *const dest_ip,
 /* Selects 'iface' as sending interface for the socket 'sockfd'. */
 void owl_use_iface(const int sockfd, const char *const iface)
 {
-#ifdef __GLIBC__
+#if defined(linux) && defined(__GLIBC__)
   if (setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE, iface,
                  strlen(iface) + 1) == -1)
     {
@@ -53,11 +53,11 @@ void owl_use_iface(const int sockfd, const char *const iface)
       perror("") ;
       fprintf(stderr, "Sending through the default interface.\n") ;
     }
-#else // __GLIBC__
+#else // linux && __GLIBC__
   fprintf(stderr, "Cannot select interface %s to send the packet:"
-	  " this option is currently GNU libc-specific.\n"
+	  " this option is currently Linux and GNU libc-specific.\n"
 	  "Sending through the default interface.\n", iface) ;
-#endif // __GLIBC__
+#endif // linux && __GLIBC__
 }
 
 
diff --git a/libowlps-resultreader/Makefile b/libowlps-resultreader/Makefile
index e73d80d..451eb68 100644
--- a/libowlps-resultreader/Makefile
+++ b/libowlps-resultreader/Makefile
@@ -36,7 +36,10 @@ PICFLAG = -fPIC
 
 LIBS = -L$(LIBOWLPS_DIR) -lowlps
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LIBS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LIBS += -lrt
 endif
 
diff --git a/owlps-aggregator/Makefile b/owlps-aggregator/Makefile
index 0133b9d..8dc17ff 100644
--- a/owlps-aggregator/Makefile
+++ b/owlps-aggregator/Makefile
@@ -39,7 +39,10 @@ OWLPSFLAGS = -D OWLPS_VERSION=\"$(OWLPS_VERSION)\"
 LIBS = -pthread -lconfuse -L$(LIBOWLPS_DIR) -lowlps
 
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LIBS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LIBS += -lrt
 endif
 
diff --git a/owlps-client/Makefile b/owlps-client/Makefile
index c1bea96..3c0dcdc 100644
--- a/owlps-client/Makefile
+++ b/owlps-client/Makefile
@@ -46,7 +46,10 @@ LIBS = -L$(LIBOWLPS_DIR) -lowlps \
 	-L$(LIBOWLPSCLIENT_DIR) -lowlps-client
 
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LIBS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LIBS += -lrt
 endif
 
diff --git a/owlps-listener/Makefile b/owlps-listener/Makefile
index 840badb..238ead4 100644
--- a/owlps-listener/Makefile
+++ b/owlps-listener/Makefile
@@ -46,7 +46,10 @@ LIBS = -L$(LIBOWLPS_DIR) -lowlps \
 	-lpcap
 
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LIBS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LIBS += -lrt
 endif
 
diff --git a/owlps-positioning/Makefile b/owlps-positioning/Makefile
index 7e10374..6d19b4f 100644
--- a/owlps-positioning/Makefile
+++ b/owlps-positioning/Makefile
@@ -44,7 +44,10 @@ LDFLAGS = -lstdc++ -lm -lboost_program_options \
 	-L$(LIBOWLPS_DIR) -lowlps
 
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LDFLAGS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LDFLAGS += -lrt
 endif
 
diff --git a/owlps-udp-to-http/Makefile b/owlps-udp-to-http/Makefile
index f487da4..ae1c5d1 100644
--- a/owlps-udp-to-http/Makefile
+++ b/owlps-udp-to-http/Makefile
@@ -41,7 +41,10 @@ LIBS = -pthread -L$(LIBOWLPS_DIR) -lowlps \
 	-L$(LIBOWLPSRESULTREADER_DIR) -lowlps-resultreader
 
 OS := $(shell uname)
-ifeq ("$(OS)", "Linux")
+ifeq "$(OS)" "Linux"
+	LIBS += -lrt
+endif
+ifeq "$(OS)" "GNU/kFreeBSD"
 	LIBS += -lrt
 endif