help error on install emc2-2.3.0

i'm a freshman .
i have a problem to install emc2-2.3.0 may you help me?
i download the package and unzip it. when i configure it ,the

error is:
...
checking for __sincos... no
checking for tcl... tclConfig.sh not found, trying tcl.h and libs.
If it doesn't work try running ./configure --with-tclConfig=<path to tclConfig.sh>
checking tcl.h usability... no
checking tcl.h presence... no
checking for tcl.h... no
checking for library containing Tcl_Init... no
configure: error: tcl lib not found

give me a favor please. thank you!

Are you downloading the Livecd or do you already have Ubuntu installed?

You might start on this page of the Wiki
wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Ins...iled_EMC2_for_Ubuntu

hth's

Brian