Anyone to compile PostgreSQL on 6.4.2?

I always got the following result everytime I try to compile pg 6.4.2(pwd:
/home/szoli/postgresql-6.4.2/src)

bash-2.01$ gmake
Making postgres.imp
./backend/port/aix/mkldexport.sh postgres /home/szoli/pgsql//bin >
postgres.imp
nm: postgres: 0654-200 Cannot open the specified file.
nm: Nem létező fájl vagy alkönyvtár az elérési útban.
gcc -bE:./backend/postgres.imp -o postgres ../utils/version.o -lPW -lld
-lnsl -ldl -lm -lreadline -lcurses
gcc: ../utils/version.o: No such file or directory
gcc: file path prefix
`/usr/local/lib/gcc-lib/E:./backend/postgres.imp/2.8.1/' never used
gmake: *** [postgres.imp] Error 1
bash-2.01$ uname -a
AIX maxim 2 4 000025534C00

--------------------------------------------------------------------------------
Sebestyén Zoltán <szoli(at)netvisor(dot)hu> I'm believing that the Holy Spirit is
gonna allow the hand, and the foot, and
MAKE INSTALL NOT WAR the mouth, just to begin to speak, and
to minister, and to heal coordinated by
the head.

I use UNIX because reboots are for hardware upgrades.

-- Waiting for FreeBSD 3.1, not Godot --