[ns] SOS--- An install problem

["Roberto.Baggio" <baggio_send@263.net>]

When i try to install ns-allinone2.1b7 in solaris of sun,
i met such problem:

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#sun5 ./install
============================================================
* Build XGraph-12.1
============================================================
loading cache ./config.cache
checking for a BSD compatible install... ./install-sh -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... ./configure: make: not found
no
checking for working aclocal... missing
checking for working autoconf... missing
checking for working automake... missing
checking for working autoheader... missing
checking for working makeinfo... missing
checking if malloc debugging is wanted... no
checking for gcc... no
checking for cc... no
configure: error: no acceptable cc found in $PATH
./install: make: not found
Can not create xgraph; But xgraph is an optional package, continuing...
============================================================
* Build CWeb
============================================================
ns-allinone unable to install cweb for you. Please install it manually. cweb is 
used by sgb to create sgblibrary needed by scenario-generator. But this will not
 affect the use of ns as such, so continue..
============================================================
* Build Stanford GraphBase
============================================================
Unable to create sgb library. This library is used by gt-itm and so for scenario
 generators. If you already have sgblib (possible if you are on solaris,sunos or
 freebsd platforms) you may still be able to run gt-itm. so continuing..
============================================================
* Build GT-ITM
============================================================
sgb lib not found. gt-itm & sgb2ns could not be installed. Continuing..
============================================================
* Build zlib
============================================================
./install: ./configure: cannot execute
Zlib-1.1.3 configuration failed, but it's optional, so continuing ...
============================================================
* Build tcl8.3.2
============================================================
./install: ./configure: cannot execute
tcl8.3.2 configuration failed! Exiting ...
Tcl is not part of the ns project.  Please see www.Scriptics.com
to see if they have a fix for your platform.

**************************************************************

Must ns2 be install upon linux instead of solaris?
I am an newer in this field....
Can someone help me?

        Thank you in advance!!!
                  
            Roberto.Baggio
            baggio_send@263.net