diff --git a/CHANGES b/CHANGES
index feff5eb..a70cc89 100644
--- a/CHANGES
+++ b/CHANGES
@@ -182,6 +182,9 @@ New features:
 	Added AF_VSOCK support with VSOCK-CONNECT and VSOCK-LISTEN addresses.
 	Developed by Stefano Garzarella.
 
+Coding:
+	Added printf formats for uint16_t etc.
+
 Documentation:
 	Address UDP-RECV does not support option fork.
 	Thanks to Fulvio Scapin for reporting that mistake in docu.
diff --git a/compat.h b/compat.h
index 99a78ae..3bc010d 100644
--- a/compat.h
+++ b/compat.h
@@ -94,6 +94,93 @@ typedef int sig_atomic_t;
 #  define SOL_IPV6 IPPROTO_IPV6
 #endif
 
+#define F_uint8_t "%hu"
+#define F_int8_t  "%hd"
+
+#ifndef F_uint16_t
+#  if HAVE_BASIC_UINT16_T==0
+#    define F_uint16_t "%hu"
+#  elif HAVE_BASIC_UINT16_T==2
+#    define F_uint16_t "%hu"
+#  elif HAVE_BASIC_UINT16_T==4
+#    define F_uint16_t "%u"
+#  elif HAVE_BASIC_UINT16_T==6
+#    define F_uint16_t "%lu"
+#  else
+#    error "HAVE_BASIC_UINT16_T is out of range:" HAVE_BASIC_UINT16_T
+#  endif
+#endif
+
+#ifndef F_uint32_t
+#  if HAVE_BASIC_UINT32_T==0
+#    define F_uint32_t "%hu"
+#  elif HAVE_BASIC_UINT32_T==2
+#    define F_uint32_t "%hu"
+#  elif HAVE_BASIC_UINT32_T==4
+#    define F_uint32_t "%u"
+#  elif HAVE_BASIC_UINT32_T==6
+#    define F_uint32_t "%lu"
+#  else
+#    error "HAVE_BASIC_UINT32_T is out of range:" HAVE_BASIC_UINT32_T
+#  endif
+#endif
+
+#ifndef F_uint64_t
+#  if HAVE_BASIC_UINT64_T==0
+#    define F_uint64_t "%hu"
+#  elif HAVE_BASIC_UINT64_T==2
+#    define F_uint64_t "%hu"
+#  elif HAVE_BASIC_UINT64_T==4
+#    define F_uint64_t "%u"
+#  elif HAVE_BASIC_UINT64_T==6
+#    define F_uint64_t "%lu"
+#  else
+#    error "HAVE_BASIC_UINT64_T is out of range:" HAVE_BASIC_UINT64_T
+#  endif
+#endif
+
+#ifndef F_int16_t
+#  if HAVE_BASIC_INT16_T==0
+#    define F_int16_t "%hd"
+#  elif HAVE_BASIC_INT16_T==1
+#    define F_int16_t "%hd"
+#  elif HAVE_BASIC_INT16_T==3
+#    define F_int16_t "%d"
+#  elif HAVE_BASIC_INT16_T==5
+#    define F_int16_t "%l"
+#  else
+#    error "HAVE_BASIC_INT16_T is out of range:" HAVE_BASIC_INT16_T
+#  endif
+#endif
+
+#ifndef F_int32_t
+#  if HAVE_BASIC_INT32_T==0
+#    define F_int32_t "%hd"
+#  elif HAVE_BASIC_INT32_T==1
+#    define F_int32_t "%hd"
+#  elif HAVE_BASIC_INT32_T==3
+#    define F_int32_t "%d"
+#  elif HAVE_BASIC_INT32_T==5
+#    define F_int32_t "%l"
+#  else
+#    error "HAVE_BASIC_INT32_T is out of range:" HAVE_BASIC_INT32_T
+#  endif
+#endif
+
+#ifndef F_int64_t
+#  if HAVE_BASIC_INT64_T==0
+#    define F_int64_t "%hd"
+#  elif HAVE_BASIC_INT64_T==1
+#    define F_int64_t "%hd"
+#  elif HAVE_BASIC_INT64_T==3
+#    define F_int64_t "%d"
+#  elif HAVE_BASIC_INT64_T==5
+#    define F_int64_t "%l"
+#  else
+#    error "HAVE_BASIC_INT64_T is out of range:" HAVE_BASIC_INT64_T
+#  endif
+#endif
+
 /* all unsigned */
 #if !defined(HAVE_BASIC_SIZE_T) || !HAVE_BASIC_SIZE_T
 #  undef HAVE_BASIC_SIZE_T
@@ -711,6 +798,17 @@ typedef unsigned long T_sigset;
 #  endif
 #endif
 
+/* basic type of struct timeval tv_usec */
+#ifndef F_tv_usec
+#  if TYPEOF_STRUCT_TIMEVAL_TV_USEC==1
+#     define F_tv_usec "%hu"
+#  elif TYPEOF_STRUCT_TIMEVAL_TV_USEC==3
+#     define F_tv_usec "%u"
+#  elif TYPEOF_STRUCT_TIMEVAL_TV_USEC==5
+#     define F_tv_usec "%lu"
+#  endif
+#endif
+
 /* Cygwin 1.3.22 has the prototypes, but not the type... */
 #ifndef HAVE_TYPE_STAT64
 #  undef HAVE_STAT64
diff --git a/config.h.in b/config.h.in
index 08ec477..3b963c6 100644
--- a/config.h.in
+++ b/config.h.in
@@ -598,6 +598,13 @@
 #endif
 
 /* 1..short, 3..int, 5..long; 2,4,6..unsigned */
+#undef HAVE_BASIC_UINT16_T
+#undef HAVE_BASIC_UINT32_T
+#undef HAVE_BASIC_UINT64_T
+#undef HAVE_BASIC_INT16_T
+#undef HAVE_BASIC_INT32_T
+#undef HAVE_BASIC_INT64_T
+
 #undef HAVE_BASIC_SIZE_T
 #undef HAVE_BASIC_MODE_T
 #undef HAVE_BASIC_PID_T
diff --git a/configure.ac b/configure.ac
index b159155..3242dce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1844,6 +1844,12 @@ define(AC_TYPEOF_COMPONENT,[
    fi
 ])
 
+AC_BASIC_TYPE([#include <stdint.h>], uint16_t, HAVE_BASIC_UINT16_T, sc_cv_type_uint16_basic)
+AC_BASIC_TYPE([#include <stdint.h>], uint32_t, HAVE_BASIC_UINT32_T, sc_cv_type_uint32_basic)
+AC_BASIC_TYPE([#include <stdint.h>], uint64_t, HAVE_BASIC_UINT64_T, sc_cv_type_uint64_basic)
+AC_BASIC_TYPE([#include <stdint.h>], int16_t,  HAVE_BASIC_INT16_T,  sc_cv_type_int16_basic)
+AC_BASIC_TYPE([#include <stdint.h>], int32_t,  HAVE_BASIC_INT32_T,  sc_cv_type_int32_basic)
+AC_BASIC_TYPE([#include <stdint.h>], int64_t,  HAVE_BASIC_INT64_T,  sc_cv_type_int64_basic)
 AC_BASIC_TYPE([#include <stdlib.h>], size_t, HAVE_BASIC_SIZE_T, sc_cv_type_sizet_basic)
 AC_BASIC_TYPE([#include <sys/types.h>
 #include <sys/stat.h>