# Checks for header files.
AC_PATH_X
-AC_CHECK_HEADERS([arpa/inet.h netinet/in.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h getopt.h])
+AC_CHECK_HEADERS([stdbool.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_SIZE_T