Make switches from gcc to cc Java is failing

I am running Solairs 2.7 and I am trying to compile postgresql-7.1.2.
When I first try to compile I only have the gcc compiler in the path.
The make gives me the following errors.
make[3]: cc: Command not found
make[3]: *** [pltcl.o] Error 127
make[3]: Leaving directory `/ufs/gnu/postgresql-7.1.2/src/pl/tcl'
make[2]: ***[all] Error 2
make[2]: Leaving directory `/ufs/gnu/postgresql-7.1.2/src/pl'
make[1]: ***[all] Error 2
make[1]: Leaving directory `/ufs/gnu/postgresql-7.1.2/src'
make: *** [all] Error 2

I then put /usr/ucb in the path. This only changed one error message
in the make.
'/usr/ucb/cc: language optional software package not installed.

I thought postgresql only needed the gcc compiler. Should I install
the cc compiler.
I found an Error saying that JAVA_HOME was not defined. I set it to
/usr/java1.2
I did a make clean and make distclean
I did configure again
I did the make this time the compile errors are as follows

make[3]: Entering directory
`/ufs/gnu/postgresql-7.1.2/src/interfaces/jdbc'
/usr/local/ant/bin/ant -buildfile ../../../build.xml -Dmajor=7
-Dminor=1 -Dfullversion=7.1.2 -ddef_pgport=5432
Exception in thread "main" java.lang.NoClassDefFounderror:
org/apache/tools/ant/Main
make[3]: *** [all] Error 1
make[3]: Leaving directory
`/ufs/gnu/postgresql-7.1.2/src/interfaces/jdbc'
make[2]: ***[all] Error 2
make[2]: Leaving directory `/ufs/gnu/postgresql-7.1.2/src/interfaces'
make[1]: ***[all] Error 2
make[1]: Leaving directory `/ufs/gnu/postgresql-7.1.2/src'
make: *** [all] Error 2

Any ideas?
Installing postgresql has so far been both painfull and a learning
experiance.

Joe
Childrens Hospital of Pittsburgh