On 02/04/2014 10:43 AM, Tom Lane wrote:
Andres Freund <and...@2ndquadrant.com> writes:
On 2014-02-04 02:10:47 -0500, Tom Lane wrote:
Meh. It might be that the DateStyle usage in postgres_fdw would
accidentally fail to malfunction if it saw a bogus value of the variable.
But it's hard to believe that this would be true of MainLWLockArray.
There's not that much lwlock usage in contrib. It's just
pg_stat_statements and pg_buffercache. Neither has tests... So it very
well could be that breakage simply hasn't been observed.
Hm, you're right --- I'd have thought there were more of those.
Ugh. This problem was bad enough when I thought that it would only lead
to link-time errors detectable in the buildfarm. If it can lead to errors
only observable at runtime --- and maybe not obvious even then --- then
I think we *have to* do something about it. By that I mean that we must
get rid of the need to manually plaster PGDLLIMPORT on global variables.
Anybody with a Windows build environment want to test the "#define extern"
trick?
We have details on how to build with Mingw/Msys on Windows on an Amazon
VM <http://wiki.postgresql.org/wiki/Building_With_MinGW> which is either
free or very cheap. Do I need to give instructions on how to do this for
MSVC builds too? It's really not terribly hard.
cheers
andrew
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