--- a/utils/cec-ctl/cec-ctl.cpp
+++ b/utils/cec-ctl/cec-ctl.cpp
@@ -18,6 +18,7 @@
 #include <errno.h>
 #include <sys/ioctl.h>
 #include <stdarg.h>
+#include <ctime>
 #include <cerrno>
 #include <string>
 #include <vector>
--- a/utils/cec-follower/cec-follower.h
+++ b/utils/cec-follower/cec-follower.h
@@ -9,6 +9,7 @@
 #define _CEC_FOLLOWER_H_
 
 #include <stdarg.h>
+#include <ctime>
 #include <cerrno>
 #include <string>
 #include <linux/cec-funcs.h>
--- a/utils/common/media-info.cpp
+++ b/utils/common/media-info.cpp
@@ -21,6 +21,7 @@
 #include <linux/media.h>
 
 #include <fstream>
+#include <iostream>
 #include <media-info.h>
 
 static std::string num2s(unsigned num, bool is_hex = true)
--- a/utils/rds-ctl/rds-ctl.cpp
+++ b/utils/rds-ctl/rds-ctl.cpp
@@ -27,6 +27,8 @@
 #include <linux/videodev2.h>
 #include <libv4l2rds.h>
 
+#include <cctype>
+#include <ctime>
 #include <list>
 #include <vector>
 #include <map>
--- a/utils/v4l2-compliance/media-info.cpp
+++ b/utils/v4l2-compliance/media-info.cpp
@@ -21,6 +21,7 @@
 #include <linux/media.h>
 
 #include <fstream>
+#include <iostream>
 #include <media-info.h>
 
 static std::string num2s(unsigned num, bool is_hex = true)
--- a/utils/v4l2-ctl/media-info.cpp
+++ b/utils/v4l2-ctl/media-info.cpp
@@ -21,6 +21,7 @@
 #include <linux/media.h>
 
 #include <fstream>
+#include <iostream>
 #include <media-info.h>
 
 static std::string num2s(unsigned num, bool is_hex = true)