Re: narwhal and PGDLLIMPORT

Craig Ringer <craig@2ndquadrant.com>

From: Craig Ringer <craig@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>, Robert Haas <robertmhaas@gmail.com>
Cc: Andrew Dunstan <andrew@dunslane.net>, Andres Freund <andres@2ndquadrant.com>, Amit Kapila <amit.kapila16@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2014-02-05T04:07:57Z
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 02/05/2014 06:29 AM, Tom Lane wrote:
> I had been okay with the manual PGDLLIMPORT-sprinkling approach
> (not happy with it, of course, but prepared to tolerate it) as long
> as I believed the buildfarm would reliably tell us of the need for
> it.  That assumption has now been conclusively disproven, though.
> The question therefore becomes, what are we going to do instead?
> "Keep on doing what we were doing" doesn't strike me as an acceptable
> answer.

I'm in complete agreement here. Silent failures we can't test for that
might sneak data corruption in are not cool.

I'll have a look into ways to making sure that globals with incorrect
linkage fail at runtime link time, as is the case for functions. I won't
be able to spend much time on it immediately; will take a quick look and
if I don't find anything, will follow up post-CF4.

I'm kind of horrified that the dynamic linker doesn't throw its toys
when it sees this.

-- 
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services