After fixing the ps_status problems, I cannot observe any problem, with
or without system.c. However, I agree that it's a bad idea to propagate
that hack forward when it's no longer needed. I've #ifdef'd out
system.c for OS X 10.3 and later. (I was tempted to disable it on
10.2.* as well, but I can only prove system() works in 10.2.6, not
having older OS X handy to test.)
As a general rule of thumb, I don't think it's necessary to support anything other than the latest revision in 10.2.x and 10.3.x at any time. The revisions are free, they mainly fix bugs, they don't affect hardware requirements and other software vendors see requiring them as a non-issue.
This, at the very least, applies to major pgsql versions such as 7.4 and 7.5 -- you might disagree about a OS version requirement changing in a point release.
But in my opinion, if system() is fixed in 10.2.6, you can require Jaguar users to upgrade to that version for 7.4.
mk
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