build libtoo

hi
Im trying to install "./build libtool"
my I revived this message
"checking for GNU M4 that supports accurate traces... /usr/local/bin/m4
checking whether /usr/local/bin/m4 accepts --gnu... yes
checking how m4 supports trace files... --debugfile
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... configure: error: newly created file is older than distributed files!
Check your system clock
Done. Making libtool-2.4.5...
Trying to make libtool...
make: Warning: File `maint.mk' has modification time 3.1e+07 s in the future
There seems to be no Makefile in this directory.
You must run ./configure before running 'make'.
make: *** [abort-due-to-no-makefile] Error 1"

how can I solve that?

Set your server date correctly using an ntp server.

/usr/sbin/ntpdate -b time.ien.it

Than try rebuild libtool

Regards