AC_CONFIG_HEADERS([config.h])
+AC_CHECK_HEADERS([fcntl.h limits.h netdb.h netinet/in.h stddef.h sys/socket.h])
+
AC_SYS_LARGEFILE
# Checks for programs.
AC_C_INLINE
AC_TYPE_PID_T
AC_TYPE_SIZE_T
+AC_TYPE_INT16_T
+AC_TYPE_INT32_T
+AC_TYPE_INT64_T
+AC_TYPE_INT8_T
+AC_TYPE_OFF_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINT8_T
# Checks for library functions.
AC_FUNC_MALLOC