AIX-4.3.3 and Postgres

     hi,

 I  couldn't compile postgres on AIX-4.3.3 . I did  all the things
written on INSTALL file
but it gave me errors.
  The configure script worked successfully but when I ran "make all" as
the postgres user
I got the follwing errors:
-----------------------------------
make: getcwd: : Permission denied
make lexverify
make: getcwd: : Permission denied
make[1]: Entering directory `'
make -C lextest all
make: getcwd: : Permission denied
make[2]: Entering an unknown directory
make[2]: getcwd: : Permission denied
make[2]: Nothing to be done for `all'.
make[2]: Leaving an unknown directory
make[1]: Leaving directory `'
make -C utils all
make: getcwd: : Permission denied
make[1]: Entering an unknown directory
make[1]: getcwd: : Permission denied
xlc -I../include -I../backend   -qchars=signed -qmaxmem=8192 -qhalt=w
-qsrcmsg -qcheck=divzero -qlonglong   -c -o version.o version.c
"/usr/include/stdlib.h", line 493.33: 1506-343 (S) Redeclaration of
getopt differs from previous declaration on line 419 of
"/usr/include/stdio.h".
"/usr/include/stdlib.h", line 493.33: 1506-377 (I) The type "char**" of
parameter 2 differs from the previous type "char* const*".
"/usr/include/stdlib.h", line 494.33: 1506-343 (S) Redeclaration of
getpass differs from previous declaration on line 262 of
"/usr/include/unistd.h".
"/usr/include/stdlib.h", line 494.33: 1506-377 (I) The type "char*" of
parameter 1 differs from
the previous type "const char*".
"../include/c.h", line 173.21: 1506-334 (S) Identifier int8 has already
been defined on line 622 of "/usr/include/sys/inttypes.h".
"../include/c.h", line 174.22: 1506-334 (S) Identifier int16 has already
been defined on line 623 of "/usr/include/sys/inttypes.h".
"../include/c.h", line 175.20: 1506-334 (S) Identifier int32 has already
been defined on line 624 of "/usr/include/sys/inttypes.h".
make[1]: *** [version.o] Error 1
make[1]: Leaving an unknown directory
make: *** [all] Error 2
---------------------------------------
 I am using GNU make.
I will be happy if you help me .  Thanks in advance.