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@postgresql.org.
    #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>...