Hello,
The first launch of ./ltib is always the most difficult of all steps required to get a working toolchain.
According to what I read:
"zlib-devel 0 not installed rpm 0 not installed rpm-build 0 not installed m4 0 not installed bison 0 not installed tcl 0 not installed Died at ./ltib line 1397. traceback: main::host_checks:1397 "
You should "apt-get install" those packages.
Which linux host flavour are you using? (Debian, Ubuntu, Fedora, etc).
You should subscribe to ltib.org mailing list: http://ltib.org/resources-mailing-list and submit your LTIB-related questions on this mailing list.
Regards,
Franz