Pgsql 7.3/7.4/8.0 on IA64 HP-UX 11i?

Has anyone successfully built 7.3.4, 7.4.3, or 8.0.0beta1 on
IA64 with HP-UX 11i v2 (11.23)? I'm not having any success,
running into 'make' failures. Googling old posts suggests
this might be due to missing test-and-set code for ia64?
I saw a disputed/repudiated ViSolve patch, but nothing else.
Is this still broken?

Here's my attempt on 8.0.0beta1:

$uname -a
HP-UX r1 B.11.23 U ia64 ...
$cc -V
(Bundled) cc: HP aC++/ANSI C B3910B A.05.50 [May 15 2003]
$make
...<snip>...
cc -Ae +O2 -I../../../../src/include -D_XOPEN_SOURCE_EXTENDED -c -o xlog.o xlog.c
(Bundled) cc: warning 922: "-Ae" is unsupported in the bundled compiler, ignored.
(Bundled) cc: warning 922: "+O2" is unsupported in the bundled compiler, ignored.
Error 119: "../../../../src/include/storage/s_lock.h", line 654 # #error PostgreSQL does not have
native spinlock support on this platform. To continue the compilation, rerun configure using
--disable-spinlocks. However, performance will be poor. Please report this to
pgsql-bugs(at)postgresql(dot)org(dot)
#error PostgreSQL does not have native spinlock support on this p
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error 22: "../../../../src/include/storage/s_lock.h", line 711 # Syntax error.
extern int tas(volatile slock_t *lock); /* in port/.../tas.s, or
^
...<snip>...