Hi,
# ln -s /usr/ucb/cc /bin/cc
ln: cannot create /bin/cc: File exists
# ls
bin dev export lib mnt opt sbin usr xfn
boot devices home lost+found net platform tmp var
core etc kernel Mail nsmail proc TT_DB vol
# cd /usr
# ls
5bin dict java1.1 net preserve spool X
adm dt java1.2 news proc src xpg4
apache games kernel oasys pub tmp
aset gcc-2.95.3 kvm old sadm ucb
bin gcc-2.95.3.tar lib openwin sbin ucbinclude
ccs include mail perl5 share ucblib
demo java man platform snadm vmsys
# cd gcc-2.95.3
# ls
ChangeLog configure.in gcc libf2c MAINTAINERS README
config contrib i386-pc-solaris2.8 libiberty Makefile symlink-tree
config-ml.in COPYING include libio Makefile.in texinfo
config.guess COPYING.LIB INSTALL libobjc mh-frag ylwrap
config.if etc install libstdc++ missing
config.sub FAQ install-sh ltconfig mkinstalldirs
configure faq.html libchill ltmain.sh move-if-change
# ./configure
Configuring for a i386-pc-solaris2.8 host.
Created "Makefile" in /usr/gcc-2.95.3 using "mh-frag"
/usr/ucb/cc: language optional software package not installed
*** The command 'cc -o conftest -g conftest.c' failed.
*** You must set the environment variable CC to a working compiler.
Still the same after add the link.

?
thanks