Rainer Tammer <pgsql@spg.schulergroup.com> writes:
> There is a pg_sema.c in src/backend/port.
> This is linked ti sysv_sema.c, there is also a posix_sema.c.
> How do you select the one or the other?
The configure script chooses which to use for a particular platform.
Perhaps it should be making a different choice for AIX?
regards, tom lane