trouble with trying to compile in os x 10.4 terminal any h..

So please let me apologize in advance for my extreme ignorance and lack
of experience.
so i'm trying to compile this install.com, it's a program called
charmm(chemical molecular dynamics from harvard). anyway i have all the
files and im trying to install it on my mac g4. supposedly it has no
problem with that. so i enter the following line in terminal and this
is what i get: (note this is not under Bash, but under csh). i've tried
all shells and get the same result.

[kevinkolahi:/c32b1] kevinkol% /c32b1/install.com osx [ huge xlf ]
Mon Feb 27 19:54:00 PST 2006

install.com> Directory /c32b1/build/osx does not exist.
Creating /c32b1/build/osx ...

install.com> Phase 1 completed.
csh: xlf: Command not found.

install.com> Unrecognized CHARMM size specified.
As default, MEDIUM will be used.

install.com> Phase 2 completed.

install.com> Processing CHARMM source on osx...

ar: no archive members specified
usage: ar -d [-TLsv] archive file ...
ar -m [-TLsv] archive file ...
ar -m [-abiTLsv] position archive file ...
ar -p [-TLsv] archive [file ...]
ar -q [-cTLsv] archive file ...
ar -r [-cuTLsv] archive file ...
ar -r [-abciuTLsv] position archive file ...
ar -t [-TLsv] archive [file ...]
ar -x [-ouTLsv] archive [file ...]
ar: no archive members specified
usage: ar -d [-TLsv] archive file ...
ar -m [-TLsv] archive file ...
ar -m [-abiTLsv] position archive file ...
ar -p [-TLsv] archive [file ...]
ar -q [-cTLsv] archive file ...
ar -r [-cuTLsv] archive file ...
ar -r [-abciuTLsv] position archive file ...
ar -t [-TLsv] archive [file ...]
ar -x [-ouTLsv] archive [file ...]
ar: no archive members specified
usage: ar -d [-TLsv] archive file ...
ar -m [-TLsv] archive file ...
ar -m [-abiTLsv] position archive file ...
ar -p [-TLsv] archive [file ...]
ar -q [-cTLsv] archive file ...
ar -r [-cuTLsv] archive file ...
ar -r [-abciuTLsv] position archive file ...
ar -t [-TLsv] archive [file ...]
ar -x [-ouTLsv] archive [file ...]
many times of the previous error,
then i get this:
install.com> The CHARMM executable
/c32b1/exec/osx/charmm is NOT produced.
Check /c32b1/build/osx/osx.log
for installation errors.

install.com> Phase 3 completed.

I have tried installing xcode 2.2 in hopes of using GCC, but after all
that, i'm not sure how to use the GNU compiler. i've really no idea
what to do.
do you guys have any ideas, i'm having a rough time.