I've not tried to build HEAD on my HPPA dinosaur for awhile, but I did
just now, and I am presented with boatloads of this:
../../../src/include/storage/s_lock.h:759: warning: `S_UNLOCK' redefined
../../../src/include/storage/s_lock.h:679: warning: this is the location of the previous definition
which is not too surprising because the "default" definition at line 679
precedes the HPPA-specific one at line 759.
I'm not particularly interested in untangling the effects of the recent
hackery in s_lock.h enough to figure out how the overall structure got
broken, but I trust one of you will clean up the mess.
regards, tom lane