| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Parallel make problem with git master |
| Date: | 2011-03-08 03:28:45 |
| Message-ID: | 22740.1299554925@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
I wrote:
> I think what is happening here is that make launches concurrent sub-jobs
> to do "make install" in each of interfaces/libpq and interfaces/ecpg,
> and the latter launches a sub-sub-job to do "make all" in
> interfaces/libpq, and make has no idea that these are duplicate sub-jobs
> so it actually tries to run both concurrently. Whereupon you get all
> sorts of fun failures. I'm not sure if there is any cure that's not
> worse than the disease.
BTW, how many people here have read "Recursive Make Considered Harmful"?
http://aegis.sourceforge.net/auug97.pdf
Because what we're presently doing looks mighty similar to what he's
saying doesn't work and can't be made to work.
regards, tom lane
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