AC_CHECK_SIZEOF(pid_t)
AC_CHECK_SIZEOF(uid_t)
AC_CHECK_SIZEOF(gid_t)
+AC_CHECK_SIZEOF(time_t)
+AC_CHECK_SIZEOF(rlim_t,,[
+ #include <sys/time.h>
+ #include <sys/resource.h>
+])
# ------------------------------------------------------------------------------
# we use python to build the man page index, and for systemd-python