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Re: [RFC] building postgres with meson - v13

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Peter Eisentraut <peter.eisentraut@enterprisedb.com>, Peter Geoghegan <pg@bowt.ie>, "wangw.fnst@fujitsu.com" <wangw.fnst@fujitsu.com>, Tom Lane <tgl@sss.pgh.pa.us>, Nathan Bossart <nathandbossart@gmail.com>, Andrew Dunstan <andrew@dunslane.net>, Justin Pryzby <pryzby@telsasoft.com>, samay sharma <smilingsamay@gmail.com>, Nazir Bilal Yavuz <byavuz81@gmail.com>, pgsql-hackers@postgresql.org
Date: 2022-09-27T04:48:21Z
Lists: pgsql-hackers 
Hi,

On 2022-09-27 17:29:27 +1300, Thomas Munro wrote:
> On Tue, Sep 27, 2022 at 2:19 PM Andres Freund <andres@anarazel.de> wrote:
> > Subject: [PATCH v17 15/23] windows: Set UMDF_USING_NTSTATUS globally, include ntstatus.h
> 
> No Windows expertise here, but this looks reasonable.  I originally
> tried to contain UMDF_USING_NTSTATUS to small translation units for
> fear of unintended consequences, but PCH requires you not to mess with
> macros that affect the compilation of a header as seen by different
> translation units, which is an incompatible goal.  If this is passing
> on MSVC and MingGW then +1 from me.

Yes, passes both.


> You mentioned WIN32_NO_STATUS in the commit message -- a mistake?

Argh. An earlier iteration. Works on mingw, but making it work with msvc
required a lot more modifications IIRC.


> Digging out my old emails/notes... that's another way to be allowed to
> include both ntstatus.h and windows.h/etc in the same translation
> unit, but not the one we're using.  I assume it's worse because you
> have to define it and then undefine it, which sounds more antithetical
> to the PCH dream.  Admittedly UMDF_USING_NTSTATUS -- from the
> "User-Mode Driver Framework" -- is a weird thing to be getting tangled
> up with because we aren't writing a driver here, but it seems to be a
> well known and widely used alternative, and is nicer because you only
> have to define it.

It's definitely weird. But it appears to be widely used...


> > Subject: [PATCH v17 16/23] windows: adjust FD_SETSIZE via commandline define
> 
> Right, we have to fix that across translation units for the same
> reason.  But why as -D and not in win32_port.h?  I followed the
> discussion from 9acda73118 to try to find the answer to that and saw
> that Michael wanted to put it there, but wanted to minimise the blast
> radius at the time:
> 
> https://www.postgresql.org/message-id/20190826054000.GE7005%40paquier.xyz

I guess a similar consideration. I was a bit worried about the references to
FD_SETSIZE in src/backend/port/win32/socket.c. Multi kB on-stack arrays in
postmaster seem like they could cause issues.

ISTM we really ought to move away from stuff using FD_SETSIZE on windows...

Greetings,

Andres Freund

Commits

  1. meson: Add 'running' test setup, as a replacement for installcheck

  2. meson: Add support for building with precompiled headers

  3. windows: Adjust FD_SETSIZE via commandline define

  4. meson: docs: Add xml{lint,proc} wrapper to collect dependencies

  5. meson: ecpg: Split definition of static and shared libraries

  6. windows: Set UMDF_USING_NTSTATUS globally, include ntstatus.h

  7. ci: Add hint about downloadable logs to README

  8. meson: Set up absolute rpaths to libdir

  9. meson: Include CFLAGS/c_args in summary and pg_config output

  10. windows: remove date from version number in win32ver.rc

  11. meson: Add initial version of meson based build system

  12. ci: windows: set error mode to not include SEM_NOGPFAULTERRORBOX

  13. Refactor PG_TEST_EXTRA logic in autoconf build

  14. Split TESTDIR into TESTLOGDIR and TESTDATADIR

  15. Don't hardcode tmp_check/ as test directory for tap tests

  16. Extend gendef.pl in preparation for meson

  17. Include c.h instead of postgres.h in src/port/*p{read,write}*.c

  18. Remove DLLTOOL, DLLWRAP from configure / Makefile.global.in

  19. Run xmllint validation only once

  20. Bump minimum Perl version to 5.14

  21. Move gramparse.h to src/backend/parser

  22. Run perltidy over Catalog.pm

  23. Parse catalog .dat files as a whole when compiling the backend

  24. Build all Flex files standalone

  25. Move private declarations shared between guc.c and guc-file.l to new header

  26. Preparatory refactoring for compiling guc-file.c standalone

  27. Move darwin sysroot determination into separate file

  28. Fix MSVC warning in compat_informix/rnull.pgc

  29. solaris: Use versioning scripts instead of -Bsymbolic

  30. Change shared library installation naming on macOS

  31. regress: allow to specify directory containing expected files, for ecpg

  32. Don't add HAVE_LDAP_H HAVE_WINLDAP_H to pg_config.h

  33. Refactor dtrace postprocessing make rules

  34. Add output directory option to gen_node_support.pl

  35. Add output directory argument to generate-unicode_norm_table.pl

  36. Add output file argument to generate-errcodes.pl

  37. Add output path arg in generate-lwlocknames.pl

  38. Move snowball_create.sql creation into perl file

  39. ecpg: Output dir, source dir, stamp file argument for preproc/*.pl

  40. psql: Output dir and dependency generation for sql_help

  41. Deal with paths containing \ and spaces in basebackup_to_shell tests

  42. Remove LLVM_CONFIG from Makefile.global.in

  43. Make update-unicode target work in vpath builds

  44. Refactor DLSUFFIX handling

  45. ldap tests: Add paths for openbsd.

  46. ldap tests: Don't run on unsupported operating systems.

  47. Remove check for accept() argument types

  48. Move our p{read,write}v replacements into their own files.

  49. Adjust yywrap macro for non-reentrant scanners for MSVC.

  50. Remove any -arch switches given in ExtUtils::Embed's ldopts from our

  51. Change PL/Perl and Pg interface build to use configured compiler and

  52. Apparently, on some systems, ExtUtils::Embed and MakeMaker are slightly