I wrote:
>> dropping symlinks to the pg binaries in /usr/bin or
>> /usr/local/bin or /sbin/ is something I've done for ages, on PostgreSQL
>> versions 7.1 -> 7.4. Is there a problem with this now?
> This is fundamentally broken by the changes to support relocatable
> installs: PG now attempts to find the support files by relative paths
> from the place where the executable was found.
> It might be worth making find_my_exec able to detect that it found a
> symlink, but I'm not sure how much code would have to be added to
> resolve the symlink, nor how portable it would be. It would fail
> anyway if someone did this via hard linking rather than symlink.
I've added code to find_my_exec to follow symlinks --- it seems to
require about a hundred lines, which is tedious but not horrible.
regards, tom lane