PG-7.3.2 and tru64 5.1a

Hi,
Just tried to compile postgres 7.3.2 on Tru64 5.1 a pk 4
with
Compaq C V6.5-207 (dtk) on Compaq Tru64 UNIX V5.1A (Rev. 1885)
Compiler Driver V6.5-207 (dtk) (dtk) cc Driver
My configure option is ..
./configure --prefix=/usr/local/postgres-7.3.2
--with-includes=/usr/local/include --enable-static --with-pgport=12001
--with-maxbackends=128

I get the following error at NAN when I compile .
gmake[4]: Entering directory
`/usr/test/data/src/databases/postgresql-7.3.2/src/backend/utils/adt'
cc -std -O4 -Olimit 2000 -I../../../../src/include -I/usr/local/include
-c -o float.o float.c
cc: Error: float.c, line 202: In this statement, the libraries on this
platform do not yet support compile-time evaluation of the constant
expression "0.0/0.0". (constfoldns)
val = NAN;
------------------------------^
cc: Error: float.c, line 263: In this statement, the libraries on this
platform do not yet support compile-time evaluation of the constant
expression "0.0/0.0". (constfoldns)
val = NAN;
------------------------------^
gmake[4]: *** [float.o] Error 1
gmake[4]: Leaving directory
`/usr/test/data/src/databases/postgresql-7.3.2/src/backend/utils/adt'
gmake[3]: *** [adt-recursive] Error 2
gmake[3]: Leaving directory
`/usr/test/data/src/databases/postgresql-7.3.2/src/backend/utils'
gmake[2]: *** [utils-recursive] Error 2
gmake[2]: Leaving directory
`/usr/test/data/src/databases/postgresql-7.3.2/src/backend'
gmake[1]: *** [all] Error 2
gmake[1]: Leaving directory
`/usr/test/data/src/databases/postgresql-7.3.2/src'
gmake: *** [all] Error 2

also could anyone also point me what values have to be raised for the
IPC ...
ipc:
msg_max = 8192
msg_mnb = 16384
msg_mni = 64
msg_tql = 40
shm_max = 4278190080
shm_min = 1024
shm_mni = 256
shm_seg = 128
sem_mni = 16
sem_msl = 25
sem_opm = 10
sem_ume = 10
sem_vmx = 32767
sem_aem = 16384
sem_broadcast_wakeup = 1
max_kernel_ports = 314912
ssm_threshold = 8388608
ssm_enable_core_dump = 1
shm_allocate_striped = 1
shm_enable_core_dump = 1

I will summarise

Thanx in advance
yogesh

PS: I'm not on the list so please email me direct .