Horton

Re: narwhal and PGDLLIMPORT

Andres Freund <andres@2ndquadrant.com>

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From: Andres Freund <andres@2ndquadrant.com>
To: Craig Ringer <craig@2ndquadrant.com>
Cc: Ashesh Vashi <ashesh.vashi@enterprisedb.com>, Tom Lane <tgl@sss.pgh.pa.us>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2014-02-03T10:37:01Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. MinGW: Link with shell32.dll instead of shfolder.dll.

  2. Centralize getopt-related declarations in a new header file pg_getopt.h.

  3. Get rid of use of dlltool in Mingw builds.

  4. Export a few more symbols required for test_shm_mq module.

  5. Export set_latch_on_sigusr1 symbol for Windows.

  6. Use SHGetFolderPath instead of SHGetSpecialFolderPath to find the

On 2014-02-03 12:00:40 +0800, Craig Ringer wrote:
> I think it's a good thing personally - we shouldn't be exporting every
> little internal var in the symbol table.
> 
> If we built with -fvisibility=hidden on 'nix there'd be no need to
> complain about commits being on on 'nix then breaking on Windows, 'cos
> the 'nix build would break in the same place. That's all or nothing
> though, there's no "vars hidden, procs exported" option in gcc.

I think that'd be an exercise in futility. We're not talking about a
general purpose library here, where I agree -fvisibility=hidden is a
useful thing, but about the backend. We'd break countless extensions
people have written. Most of those have been authored on *nix.
To make any form of sense we'd need to have a really separate API
layer between internal/external stuff. That doesn't seem likely to
arrive anytime soon, if ever.
I think all that would achieve is that we'd regularly need to backpatch
visibility fixes. And have countless pointless flames about which
variables to expose.

Greetings,

Andres Freund

-- 
 Andres Freund	                   http://www.2ndQuadrant.com/
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