There are a few places in configure and the makefiles that are looking
at $host_cpu to decide what to do. As far as I can tell, almost all of
them are wrong and should be looking at $target_cpu instead. (The
lack of complaints indicates that nobody is trying very hard to test
cross-compilation.)
I'm not too sure about this case in makefiles/Makefile.hpux:
ifeq ($(host_cpu), ia64)
DLSUFFIX = .so
else
DLSUFFIX = .sl
endif
Does HPUX even support cross-compiling, and if so what shlib extension
do you get in that case?
The other references seem definitely wrong ...
regards, tom lane