With old name 'autoreconf' creates
configure.ac:550: warning: AC_CACHE_VAL(socklen_t_equiv, ...): suspicious cache-id, must contain _cv_ to be cached
../../lib/autoconf/general.m4:1974: AC_CACHE_VAL is expanded from...
../../lib/m4sugar/m4sh.m4:505: AS_IF is expanded from...
../../lib/autoconf/types.m4:234: AC_CHECK_TYPE is expanded from
warnings else.
Applied in revision 1506. Thanks!